Home / 83,908,855.80-125,650,707.30-66,902,743.80

Finding the Fourth Proportional to 83,908,855.80, 125,650,707.30 and 66,902,743.80

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Solution

The fourth proportional to 83,908,855.80, 125,650,707.30 and 66,902,743.80 is: 100,184,622.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,908,855.80 : 125,650,707.30 = 66,902,743.80 : x
  2. Step 2: Convert to fraction form
    83,908,855.80/125,650,707.30 = 66,902,743.80/x
  3. Step 3: Cross multiply
    83,908,855.80x = 125,650,707.30 × 66,902,743.80
  4. Step 4: Simplify right side
    83,908,855.80x = 8,406,377,078,780,689
  5. Step 5: Solve for x
    x = 8,406,377,078,780,689/83,908,855.80
  6. Step 6: Final answer
    x = 100,184,622.93

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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.