Home / 528,037,062.10-792,055,593.15-390,287,554.90

Finding the Fourth Proportional to 528,037,062.10, 792,055,593.15 and 390,287,554.90

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Solution

The fourth proportional to 528,037,062.10, 792,055,593.15 and 390,287,554.90 is: 585,431,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037,062.10 : 792,055,593.15 = 390,287,554.90 : x
  2. Step 2: Convert to fraction form
    528,037,062.10/792,055,593.15 = 390,287,554.90/x
  3. Step 3: Cross multiply
    528,037,062.10x = 792,055,593.15 × 390,287,554.90
  4. Step 4: Simplify right side
    528,037,062.10x = 309,129,440,795,382,656
  5. Step 5: Solve for x
    x = 309,129,440,795,382,656/528,037,062.10
  6. Step 6: Final answer
    x = 585,431,332.35

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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.