Home / 89,914,785.60-134,872,178.40-67,239,969.60

Finding the Fourth Proportional to 89,914,785.60, 134,872,178.40 and 67,239,969.60

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Solution

The fourth proportional to 89,914,785.60, 134,872,178.40 and 67,239,969.60 is: 100,859,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,914,785.60 : 134,872,178.40 = 67,239,969.60 : x
  2. Step 2: Convert to fraction form
    89,914,785.60/134,872,178.40 = 67,239,969.60/x
  3. Step 3: Cross multiply
    89,914,785.60x = 134,872,178.40 × 67,239,969.60
  4. Step 4: Simplify right side
    89,914,785.60x = 9,068,801,175,501,776
  5. Step 5: Solve for x
    x = 9,068,801,175,501,776/89,914,785.60
  6. Step 6: Final answer
    x = 100,859,954.40

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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.