Home / 121,117,411.70-181,676,117.55-72,744,470.90

Finding the Fourth Proportional to 121,117,411.70, 181,676,117.55 and 72,744,470.90

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Solution

The fourth proportional to 121,117,411.70, 181,676,117.55 and 72,744,470.90 is: 109,116,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,117,411.70 : 181,676,117.55 = 72,744,470.90 : x
  2. Step 2: Convert to fraction form
    121,117,411.70/181,676,117.55 = 72,744,470.90/x
  3. Step 3: Cross multiply
    121,117,411.70x = 181,676,117.55 × 72,744,470.90
  4. Step 4: Simplify right side
    121,117,411.70x = 13,215,933,046,340,956
  5. Step 5: Solve for x
    x = 13,215,933,046,340,956/121,117,411.70
  6. Step 6: Final answer
    x = 109,116,706.35

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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.