Home / 132,815,400.13-198,814,491.78-86,657,880.97

Finding the Fourth Proportional to 132,815,400.13, 198,814,491.78 and 86,657,880.97

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Solution

The fourth proportional to 132,815,400.13, 198,814,491.78 and 86,657,880.97 is: 129,720,217.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,815,400.13 : 198,814,491.78 = 86,657,880.97 : x
  2. Step 2: Convert to fraction form
    132,815,400.13/198,814,491.78 = 86,657,880.97/x
  3. Step 3: Cross multiply
    132,815,400.13x = 198,814,491.78 × 86,657,880.97
  4. Step 4: Simplify right side
    132,815,400.13x = 17,228,842,563,782,284
  5. Step 5: Solve for x
    x = 17,228,842,563,782,284/132,815,400.13
  6. Step 6: Final answer
    x = 129,720,217.29

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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.