Home / 129,668,060.36-194,515,712.15-42,236,390.33

Finding the Fourth Proportional to 129,668,060.36, 194,515,712.15 and 42,236,390.33

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Solution

The fourth proportional to 129,668,060.36, 194,515,712.15 and 42,236,390.33 is: 63,359,022.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,668,060.36 : 194,515,712.15 = 42,236,390.33 : x
  2. Step 2: Convert to fraction form
    129,668,060.36/194,515,712.15 = 42,236,390.33/x
  3. Step 3: Cross multiply
    129,668,060.36x = 194,515,712.15 × 42,236,390.33
  4. Step 4: Simplify right side
    129,668,060.36x = 8,215,641,542,501,564
  5. Step 5: Solve for x
    x = 8,215,641,542,501,564/129,668,060.36
  6. Step 6: Final answer
    x = 63,359,022.41

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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.