Home / 528,037,061.10-792,055,591.65-390,287,553.90

Finding the Fourth Proportional to 528,037,061.10, 792,055,591.65 and 390,287,553.90

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Solution

The fourth proportional to 528,037,061.10, 792,055,591.65 and 390,287,553.90 is: 585,431,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037,061.10 : 792,055,591.65 = 390,287,553.90 : x
  2. Step 2: Convert to fraction form
    528,037,061.10/792,055,591.65 = 390,287,553.90/x
  3. Step 3: Cross multiply
    528,037,061.10x = 792,055,591.65 × 390,287,553.90
  4. Step 4: Simplify right side
    528,037,061.10x = 309,129,439,417,895,744
  5. Step 5: Solve for x
    x = 309,129,439,417,895,744/528,037,061.10
  6. Step 6: Final answer
    x = 585,431,330.85

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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.