Home / 108,612,511.91-149,890,390.66-61,570,497.13

Finding the Fourth Proportional to 108,612,511.91, 149,890,390.66 and 61,570,497.13

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Solution

The fourth proportional to 108,612,511.91, 149,890,390.66 and 61,570,497.13 is: 84,970,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,612,511.91 : 149,890,390.66 = 61,570,497.13 : x
  2. Step 2: Convert to fraction form
    108,612,511.91/149,890,390.66 = 61,570,497.13/x
  3. Step 3: Cross multiply
    108,612,511.91x = 149,890,390.66 × 61,570,497.13
  4. Step 4: Simplify right side
    108,612,511.91x = 9,228,825,867,835,708
  5. Step 5: Solve for x
    x = 9,228,825,867,835,708/108,612,511.91
  6. Step 6: Final answer
    x = 84,970,190.87

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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.