Home / 138,745,548.39-208,102,122.33-55,743,940.89

Finding the Fourth Proportional to 138,745,548.39, 208,102,122.33 and 55,743,940.89

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Solution

The fourth proportional to 138,745,548.39, 208,102,122.33 and 55,743,940.89 is: 83,609,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,745,548.39 : 208,102,122.33 = 55,743,940.89 : x
  2. Step 2: Convert to fraction form
    138,745,548.39/208,102,122.33 = 55,743,940.89/x
  3. Step 3: Cross multiply
    138,745,548.39x = 208,102,122.33 × 55,743,940.89
  4. Step 4: Simplify right side
    138,745,548.39x = 11,600,432,406,247,070
  5. Step 5: Solve for x
    x = 11,600,432,406,247,070/138,745,548.39
  6. Step 6: Final answer
    x = 83,609,402.54

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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.