Home / 121,212,654.80-167,223,943.88-89,498,829.28

Finding the Fourth Proportional to 121,212,654.80, 167,223,943.88 and 89,498,829.28

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Solution

The fourth proportional to 121,212,654.80, 167,223,943.88 and 89,498,829.28 is: 123,471,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212,654.80 : 167,223,943.88 = 89,498,829.28 : x
  2. Step 2: Convert to fraction form
    121,212,654.80/167,223,943.88 = 89,498,829.28/x
  3. Step 3: Cross multiply
    121,212,654.80x = 167,223,943.88 × 89,498,829.28
  4. Step 4: Simplify right side
    121,212,654.80x = 14,966,347,204,844,420
  5. Step 5: Solve for x
    x = 14,966,347,204,844,420/121,212,654.80
  6. Step 6: Final answer
    x = 123,471,820.90

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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.