Home / 84,872,115-127,309,061.52-67,940,419.32

Finding the Fourth Proportional to 84,872,115, 127,309,061.52 and 67,940,419.32

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Solution

The fourth proportional to 84,872,115, 127,309,061.52 and 67,940,419.32 is: 101,911,340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,872,115 : 127,309,061.52 = 67,940,419.32 : x
  2. Step 2: Convert to fraction form
    84,872,115/127,309,061.52 = 67,940,419.32/x
  3. Step 3: Cross multiply
    84,872,115x = 127,309,061.52 × 67,940,419.32
  4. Step 4: Simplify right side
    84,872,115x = 8,649,431,022,904,475
  5. Step 5: Solve for x
    x = 8,649,431,022,904,475/84,872,115
  6. Step 6: Final answer
    x = 101,911,340.64

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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.