Home / 81,687,120.48-112,726,149.12-44,518,356.72

Finding the Fourth Proportional to 81,687,120.48, 112,726,149.12 and 44,518,356.72

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Solution

The fourth proportional to 81,687,120.48, 112,726,149.12 and 44,518,356.72 is: 61,434,200.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,687,120.48 : 112,726,149.12 = 44,518,356.72 : x
  2. Step 2: Convert to fraction form
    81,687,120.48/112,726,149.12 = 44,518,356.72/x
  3. Step 3: Cross multiply
    81,687,120.48x = 112,726,149.12 × 44,518,356.72
  4. Step 4: Simplify right side
    81,687,120.48x = 5,018,382,918,196,074
  5. Step 5: Solve for x
    x = 5,018,382,918,196,074/81,687,120.48
  6. Step 6: Final answer
    x = 61,434,200.26

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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.