Home / 127,156,213.31-175,464,800.87-76,939,135.33

Finding the Fourth Proportional to 127,156,213.31, 175,464,800.87 and 76,939,135.33

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Solution

The fourth proportional to 127,156,213.31, 175,464,800.87 and 76,939,135.33 is: 106,169,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,156,213.31 : 175,464,800.87 = 76,939,135.33 : x
  2. Step 2: Convert to fraction form
    127,156,213.31/175,464,800.87 = 76,939,135.33/x
  3. Step 3: Cross multiply
    127,156,213.31x = 175,464,800.87 × 76,939,135.33
  4. Step 4: Simplify right side
    127,156,213.31x = 13,500,110,059,788,432
  5. Step 5: Solve for x
    x = 13,500,110,059,788,432/127,156,213.31
  6. Step 6: Final answer
    x = 106,169,487.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.