Home / 71,147,131,905.72-106,720,947,312.84-18,088,170,746.79

Finding the Fourth Proportional to 71,147,131,905.72, 106,720,947,312.84 and 18,088,170,746.79

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Solution

The fourth proportional to 71,147,131,905.72, 106,720,947,312.84 and 18,088,170,746.79 is: 27,132,319,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,147,131,905.72 : 106,720,947,312.84 = 18,088,170,746.79 : x
  2. Step 2: Convert to fraction form
    71,147,131,905.72/106,720,947,312.84 = 18,088,170,746.79/x
  3. Step 3: Cross multiply
    71,147,131,905.72x = 106,720,947,312.84 × 18,088,170,746.79
  4. Step 4: Simplify right side
    71,147,131,905.72x = 1,930,386,717,253,829,394,432
  5. Step 5: Solve for x
    x = 1,930,386,717,253,829,394,432/71,147,131,905.72
  6. Step 6: Final answer
    x = 27,132,319,540.47

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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.