Home / 121,212,655.80-167,223,945.26-89,498,830.28

Finding the Fourth Proportional to 121,212,655.80, 167,223,945.26 and 89,498,830.28

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Solution

The fourth proportional to 121,212,655.80, 167,223,945.26 and 89,498,830.28 is: 123,471,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212,655.80 : 167,223,945.26 = 89,498,830.28 : x
  2. Step 2: Convert to fraction form
    121,212,655.80/167,223,945.26 = 89,498,830.28/x
  3. Step 3: Cross multiply
    121,212,655.80x = 167,223,945.26 × 89,498,830.28
  4. Step 4: Simplify right side
    121,212,655.80x = 14,966,347,495,576,750
  5. Step 5: Solve for x
    x = 14,966,347,495,576,750/121,212,655.80
  6. Step 6: Final answer
    x = 123,471,822.28

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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.