Home / 131,127,405.39-180,951,079.44-72,388,811.77

Finding the Fourth Proportional to 131,127,405.39, 180,951,079.44 and 72,388,811.77

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Solution

The fourth proportional to 131,127,405.39, 180,951,079.44 and 72,388,811.77 is: 99,893,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,127,405.39 : 180,951,079.44 = 72,388,811.77 : x
  2. Step 2: Convert to fraction form
    131,127,405.39/180,951,079.44 = 72,388,811.77/x
  3. Step 3: Cross multiply
    131,127,405.39x = 180,951,079.44 × 72,388,811.77
  4. Step 4: Simplify right side
    131,127,405.39x = 13,098,833,629,160,476
  5. Step 5: Solve for x
    x = 13,098,833,629,160,476/131,127,405.39
  6. Step 6: Final answer
    x = 99,893,943.53

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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.