Home / 83,406,487.80-125,109,731.70-68,951,292.60

Finding the Fourth Proportional to 83,406,487.80, 125,109,731.70 and 68,951,292.60

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Solution

The fourth proportional to 83,406,487.80, 125,109,731.70 and 68,951,292.60 is: 103,426,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406,487.80 : 125,109,731.70 = 68,951,292.60 : x
  2. Step 2: Convert to fraction form
    83,406,487.80/125,109,731.70 = 68,951,292.60/x
  3. Step 3: Cross multiply
    83,406,487.80x = 125,109,731.70 × 68,951,292.60
  4. Step 4: Simplify right side
    83,406,487.80x = 8,626,477,717,554,195
  5. Step 5: Solve for x
    x = 8,626,477,717,554,195/83,406,487.80
  6. Step 6: Final answer
    x = 103,426,938.90

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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.