Home / 121,116,742.80-181,458,601.20-73,706,956.80

Finding the Fourth Proportional to 121,116,742.80, 181,458,601.20 and 73,706,956.80

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Solution

The fourth proportional to 121,116,742.80, 181,458,601.20 and 73,706,956.80 is: 110,428,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116,742.80 : 181,458,601.20 = 73,706,956.80 : x
  2. Step 2: Convert to fraction form
    121,116,742.80/181,458,601.20 = 73,706,956.80/x
  3. Step 3: Cross multiply
    121,116,742.80x = 181,458,601.20 × 73,706,956.80
  4. Step 4: Simplify right side
    121,116,742.80x = 13,374,761,279,636,826
  5. Step 5: Solve for x
    x = 13,374,761,279,636,826/121,116,742.80
  6. Step 6: Final answer
    x = 110,428,673.78

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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.