Home / 129,091,279.80-193,693,966.62-67,665,751.38

Finding the Fourth Proportional to 129,091,279.80, 193,693,966.62 and 67,665,751.38

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Solution

The fourth proportional to 129,091,279.80, 193,693,966.62 and 67,665,751.38 is: 101,528,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,091,279.80 : 193,693,966.62 = 67,665,751.38 : x
  2. Step 2: Convert to fraction form
    129,091,279.80/193,693,966.62 = 67,665,751.38/x
  3. Step 3: Cross multiply
    129,091,279.80x = 193,693,966.62 × 67,665,751.38
  4. Step 4: Simplify right side
    129,091,279.80x = 13,106,447,789,114,938
  5. Step 5: Solve for x
    x = 13,106,447,789,114,938/129,091,279.80
  6. Step 6: Final answer
    x = 101,528,529.34

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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.