Home / 1,126,136,412.40-1,689,204,618.60-642,407,004.40

Finding the Fourth Proportional to 1,126,136,412.40, 1,689,204,618.60 and 642,407,004.40

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Solution

The fourth proportional to 1,126,136,412.40, 1,689,204,618.60 and 642,407,004.40 is: 963,610,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,136,412.40 : 1,689,204,618.60 = 642,407,004.40 : x
  2. Step 2: Convert to fraction form
    1,126,136,412.40/1,689,204,618.60 = 642,407,004.40/x
  3. Step 3: Cross multiply
    1,126,136,412.40x = 1,689,204,618.60 × 642,407,004.40
  4. Step 4: Simplify right side
    1,126,136,412.40x = 1,085,156,878,853,470,464
  5. Step 5: Solve for x
    x = 1,085,156,878,853,470,464/1,126,136,412.40
  6. Step 6: Final answer
    x = 963,610,506.60

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Double scale
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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.