Home / 121,979,269.33-168,333,799.13-66,974,644.69

Finding the Fourth Proportional to 121,979,269.33, 168,333,799.13 and 66,974,644.69

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Solution

The fourth proportional to 121,979,269.33, 168,333,799.13 and 66,974,644.69 is: 92,426,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,979,269.33 : 168,333,799.13 = 66,974,644.69 : x
  2. Step 2: Convert to fraction form
    121,979,269.33/168,333,799.13 = 66,974,644.69/x
  3. Step 3: Cross multiply
    121,979,269.33x = 168,333,799.13 × 66,974,644.69
  4. Step 4: Simplify right side
    121,979,269.33x = 11,274,096,385,714,708
  5. Step 5: Solve for x
    x = 11,274,096,385,714,708/121,979,269.33
  6. Step 6: Final answer
    x = 92,426,331.52

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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.