Home / 78,282,607.20-117,381,920.40-32,793,007.20

Finding the Fourth Proportional to 78,282,607.20, 117,381,920.40 and 32,793,007.20

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Solution

The fourth proportional to 78,282,607.20, 117,381,920.40 and 32,793,007.20 is: 49,171,920.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,282,607.20 : 117,381,920.40 = 32,793,007.20 : x
  2. Step 2: Convert to fraction form
    78,282,607.20/117,381,920.40 = 32,793,007.20/x
  3. Step 3: Cross multiply
    78,282,607.20x = 117,381,920.40 × 32,793,007.20
  4. Step 4: Simplify right side
    78,282,607.20x = 3,849,306,160,827,027
  5. Step 5: Solve for x
    x = 3,849,306,160,827,027/78,282,607.20
  6. Step 6: Final answer
    x = 49,171,920.79

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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.