Home / 394,291,877.72-591,312,034.88-135,444,681.32

Finding the Fourth Proportional to 394,291,877.72, 591,312,034.88 and 135,444,681.32

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Solution

The fourth proportional to 394,291,877.72, 591,312,034.88 and 135,444,681.32 is: 203,123,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,291,877.72 : 591,312,034.88 = 135,444,681.32 : x
  2. Step 2: Convert to fraction form
    394,291,877.72/591,312,034.88 = 135,444,681.32/x
  3. Step 3: Cross multiply
    394,291,877.72x = 591,312,034.88 × 135,444,681.32
  4. Step 4: Simplify right side
    394,291,877.72x = 80,090,070,125,002,320
  5. Step 5: Solve for x
    x = 80,090,070,125,002,320/394,291,877.72
  6. Step 6: Final answer
    x = 203,123,814.24

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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.