Home / 127,766,672.10-191,650,008.15-81,850,169.70

Finding the Fourth Proportional to 127,766,672.10, 191,650,008.15 and 81,850,169.70

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Solution

The fourth proportional to 127,766,672.10, 191,650,008.15 and 81,850,169.70 is: 122,775,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766,672.10 : 191,650,008.15 = 81,850,169.70 : x
  2. Step 2: Convert to fraction form
    127,766,672.10/191,650,008.15 = 81,850,169.70/x
  3. Step 3: Cross multiply
    127,766,672.10x = 191,650,008.15 × 81,850,169.70
  4. Step 4: Simplify right side
    127,766,672.10x = 15,686,585,690,083,884
  5. Step 5: Solve for x
    x = 15,686,585,690,083,884/127,766,672.10
  6. Step 6: Final answer
    x = 122,775,254.55

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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.