Home / 81,721,863.60-112,776,941.28-45,053,746.80

Finding the Fourth Proportional to 81,721,863.60, 112,776,941.28 and 45,053,746.80

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Solution

The fourth proportional to 81,721,863.60, 112,776,941.28 and 45,053,746.80 is: 62,174,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,721,863.60 : 112,776,941.28 = 45,053,746.80 : x
  2. Step 2: Convert to fraction form
    81,721,863.60/112,776,941.28 = 45,053,746.80/x
  3. Step 3: Cross multiply
    81,721,863.60x = 112,776,941.28 × 45,053,746.80
  4. Step 4: Simplify right side
    81,721,863.60x = 5,081,023,757,307,588
  5. Step 5: Solve for x
    x = 5,081,023,757,307,588/81,721,863.60
  6. Step 6: Final answer
    x = 62,174,594.82

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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.