Home / 28,737,336.52-39,690,517.62-20,931,627.88

Finding the Fourth Proportional to 28,737,336.52, 39,690,517.62 and 20,931,627.88

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Solution

The fourth proportional to 28,737,336.52, 39,690,517.62 and 20,931,627.88 is: 28,909,677.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737,336.52 : 39,690,517.62 = 20,931,627.88 : x
  2. Step 2: Convert to fraction form
    28,737,336.52/39,690,517.62 = 20,931,627.88/x
  3. Step 3: Cross multiply
    28,737,336.52x = 39,690,517.62 × 20,931,627.88
  4. Step 4: Simplify right side
    28,737,336.52x = 830,787,145,186,423.12
  5. Step 5: Solve for x
    x = 830,787,145,186,423.12/28,737,336.52
  6. Step 6: Final answer
    x = 28,909,677.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.