Home / 127,982,986.83-176,621,534.51-72,230,354.73

Finding the Fourth Proportional to 127,982,986.83, 176,621,534.51 and 72,230,354.73

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Solution

The fourth proportional to 127,982,986.83, 176,621,534.51 and 72,230,354.73 is: 99,680,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,982,986.83 : 176,621,534.51 = 72,230,354.73 : x
  2. Step 2: Convert to fraction form
    127,982,986.83/176,621,534.51 = 72,230,354.73/x
  3. Step 3: Cross multiply
    127,982,986.83x = 176,621,534.51 × 72,230,354.73
  4. Step 4: Simplify right side
    127,982,986.83x = 12,757,436,090,253,086
  5. Step 5: Solve for x
    x = 12,757,436,090,253,086/127,982,986.83
  6. Step 6: Final answer
    x = 99,680,718.56

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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.