Home / 80,751,630.30-121,127,445.45-74,516,055.90

Finding the Fourth Proportional to 80,751,630.30, 121,127,445.45 and 74,516,055.90

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Solution

The fourth proportional to 80,751,630.30, 121,127,445.45 and 74,516,055.90 is: 111,774,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,751,630.30 : 121,127,445.45 = 74,516,055.90 : x
  2. Step 2: Convert to fraction form
    80,751,630.30/121,127,445.45 = 74,516,055.90/x
  3. Step 3: Cross multiply
    80,751,630.30x = 121,127,445.45 × 74,516,055.90
  4. Step 4: Simplify right side
    80,751,630.30x = 9,025,939,496,176,402
  5. Step 5: Solve for x
    x = 9,025,939,496,176,402/80,751,630.30
  6. Step 6: Final answer
    x = 111,774,083.85

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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.