Home / 521,604,007.20-782,406,010.80-482,189,018.40

Finding the Fourth Proportional to 521,604,007.20, 782,406,010.80 and 482,189,018.40

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Solution

The fourth proportional to 521,604,007.20, 782,406,010.80 and 482,189,018.40 is: 723,283,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,604,007.20 : 782,406,010.80 = 482,189,018.40 : x
  2. Step 2: Convert to fraction form
    521,604,007.20/782,406,010.80 = 482,189,018.40/x
  3. Step 3: Cross multiply
    521,604,007.20x = 782,406,010.80 × 482,189,018.40
  4. Step 4: Simplify right side
    521,604,007.20x = 377,267,586,337,911,744
  5. Step 5: Solve for x
    x = 377,267,586,337,911,744/521,604,007.20
  6. Step 6: Final answer
    x = 723,283,527.60

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1.5x scale

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.