Home / 398,581,618.80-597,872,428.20-282,355,472.10

Finding the Fourth Proportional to 398,581,618.80, 597,872,428.20 and 282,355,472.10

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Solution

The fourth proportional to 398,581,618.80, 597,872,428.20 and 282,355,472.10 is: 423,533,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,581,618.80 : 597,872,428.20 = 282,355,472.10 : x
  2. Step 2: Convert to fraction form
    398,581,618.80/597,872,428.20 = 282,355,472.10/x
  3. Step 3: Cross multiply
    398,581,618.80x = 597,872,428.20 × 282,355,472.10
  4. Step 4: Simplify right side
    398,581,618.80x = 168,812,551,719,984,384
  5. Step 5: Solve for x
    x = 168,812,551,719,984,384/398,581,618.80
  6. Step 6: Final answer
    x = 423,533,208.15

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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.