Home / 1,126,136,568.15-1,689,204,852.23-642,407,160.15

Finding the Fourth Proportional to 1,126,136,568.15, 1,689,204,852.23 and 642,407,160.15

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Solution

The fourth proportional to 1,126,136,568.15, 1,689,204,852.23 and 642,407,160.15 is: 963,610,740.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,136,568.15 : 1,689,204,852.23 = 642,407,160.15 : x
  2. Step 2: Convert to fraction form
    1,126,136,568.15/1,689,204,852.23 = 642,407,160.15/x
  3. Step 3: Cross multiply
    1,126,136,568.15x = 1,689,204,852.23 × 642,407,160.15
  4. Step 4: Simplify right side
    1,126,136,568.15x = 1,085,157,292,029,462,528
  5. Step 5: Solve for x
    x = 1,085,157,292,029,462,528/1,126,136,568.15
  6. Step 6: Final answer
    x = 963,610,740.23

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Half scale
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Double scale
Find fourth proportional to 1,126,136,569.15, 1,689,204,853.73 and 642,407,161.15
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.