Home / 137,070,620.64-189,155,692.86-78,332,612.04

Finding the Fourth Proportional to 137,070,620.64, 189,155,692.86 and 78,332,612.04

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Solution

The fourth proportional to 137,070,620.64, 189,155,692.86 and 78,332,612.04 is: 108,097,996.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,070,620.64 : 189,155,692.86 = 78,332,612.04 : x
  2. Step 2: Convert to fraction form
    137,070,620.64/189,155,692.86 = 78,332,612.04/x
  3. Step 3: Cross multiply
    137,070,620.64x = 189,155,692.86 × 78,332,612.04
  4. Step 4: Simplify right side
    137,070,620.64x = 14,817,059,503,959,780
  5. Step 5: Solve for x
    x = 14,817,059,503,959,780/137,070,620.64
  6. Step 6: Final answer
    x = 108,097,996.75

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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.