Home / 658,354,956.68-987,751,961.28-437,895,421.04

Finding the Fourth Proportional to 658,354,956.68, 987,751,961.28 and 437,895,421.04

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Solution

The fourth proportional to 658,354,956.68, 987,751,961.28 and 437,895,421.04 is: 656,989,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,354,956.68 : 987,751,961.28 = 437,895,421.04 : x
  2. Step 2: Convert to fraction form
    658,354,956.68/987,751,961.28 = 437,895,421.04/x
  3. Step 3: Cross multiply
    658,354,956.68x = 987,751,961.28 × 437,895,421.04
  4. Step 4: Simplify right side
    658,354,956.68x = 432,532,060,967,791,360
  5. Step 5: Solve for x
    x = 432,532,060,967,791,360/658,354,956.68
  6. Step 6: Final answer
    x = 656,989,146.32

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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.