Home / 126,029,019.60-188,665,615.80-74,884,712.40

Finding the Fourth Proportional to 126,029,019.60, 188,665,615.80 and 74,884,712.40

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Solution

The fourth proportional to 126,029,019.60, 188,665,615.80 and 74,884,712.40 is: 112,102,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029,019.60 : 188,665,615.80 = 74,884,712.40 : x
  2. Step 2: Convert to fraction form
    126,029,019.60/188,665,615.80 = 74,884,712.40/x
  3. Step 3: Cross multiply
    126,029,019.60x = 188,665,615.80 × 74,884,712.40
  4. Step 4: Simplify right side
    126,029,019.60x = 14,128,170,378,951,898
  5. Step 5: Solve for x
    x = 14,128,170,378,951,898/126,029,019.60
  6. Step 6: Final answer
    x = 112,102,517.53

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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.