Home / 528,037,057.10-792,055,585.65-390,287,549.90

Finding the Fourth Proportional to 528,037,057.10, 792,055,585.65 and 390,287,549.90

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Solution

The fourth proportional to 528,037,057.10, 792,055,585.65 and 390,287,549.90 is: 585,431,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037,057.10 : 792,055,585.65 = 390,287,549.90 : x
  2. Step 2: Convert to fraction form
    528,037,057.10/792,055,585.65 = 390,287,549.90/x
  3. Step 3: Cross multiply
    528,037,057.10x = 792,055,585.65 × 390,287,549.90
  4. Step 4: Simplify right side
    528,037,057.10x = 309,129,433,907,948,096
  5. Step 5: Solve for x
    x = 309,129,433,907,948,096/528,037,057.10
  6. Step 6: Final answer
    x = 585,431,324.85

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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.