Home / 135,378,404.85-203,086,888.76-42,013,442.97

Finding the Fourth Proportional to 135,378,404.85, 203,086,888.76 and 42,013,442.97

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Solution

The fourth proportional to 135,378,404.85, 203,086,888.76 and 42,013,442.97 is: 63,026,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,378,404.85 : 203,086,888.76 = 42,013,442.97 : x
  2. Step 2: Convert to fraction form
    135,378,404.85/203,086,888.76 = 42,013,442.97/x
  3. Step 3: Cross multiply
    135,378,404.85x = 203,086,888.76 × 42,013,442.97
  4. Step 4: Simplify right side
    135,378,404.85x = 8,532,379,418,872,993
  5. Step 5: Solve for x
    x = 8,532,379,418,872,993/135,378,404.85
  6. Step 6: Final answer
    x = 63,026,148.29

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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.