Home / 826,685,377.81-1,140,825,318.41-455,407,409.18

Finding the Fourth Proportional to 826,685,377.81, 1,140,825,318.41 and 455,407,409.18

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Solution

The fourth proportional to 826,685,377.81, 1,140,825,318.41 and 455,407,409.18 is: 628,461,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,377.81 : 1,140,825,318.41 = 455,407,409.18 : x
  2. Step 2: Convert to fraction form
    826,685,377.81/1,140,825,318.41 = 455,407,409.18/x
  3. Step 3: Cross multiply
    826,685,377.81x = 1,140,825,318.41 × 455,407,409.18
  4. Step 4: Simplify right side
    826,685,377.81x = 519,540,302,588,037,184
  5. Step 5: Solve for x
    x = 519,540,302,588,037,184/826,685,377.81
  6. Step 6: Final answer
    x = 628,461,947.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.