Home / 121,454,911.52-167,591,225.04-72,551,958.56

Finding the Fourth Proportional to 121,454,911.52, 167,591,225.04 and 72,551,958.56

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Solution

The fourth proportional to 121,454,911.52, 167,591,225.04 and 72,551,958.56 is: 100,111,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,454,911.52 : 167,591,225.04 = 72,551,958.56 : x
  2. Step 2: Convert to fraction form
    121,454,911.52/167,591,225.04 = 72,551,958.56/x
  3. Step 3: Cross multiply
    121,454,911.52x = 167,591,225.04 × 72,551,958.56
  4. Step 4: Simplify right side
    121,454,911.52x = 12,159,071,614,121,714
  5. Step 5: Solve for x
    x = 12,159,071,614,121,714/121,454,911.52
  6. Step 6: Final answer
    x = 100,111,814.85

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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.