Home / 137,391,037.20-206,086,555.80-83,643,325.20

Finding the Fourth Proportional to 137,391,037.20, 206,086,555.80 and 83,643,325.20

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Solution

The fourth proportional to 137,391,037.20, 206,086,555.80 and 83,643,325.20 is: 125,464,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,391,037.20 : 206,086,555.80 = 83,643,325.20 : x
  2. Step 2: Convert to fraction form
    137,391,037.20/206,086,555.80 = 83,643,325.20/x
  3. Step 3: Cross multiply
    137,391,037.20x = 206,086,555.80 × 83,643,325.20
  4. Step 4: Simplify right side
    137,391,037.20x = 17,237,764,806,127,348
  5. Step 5: Solve for x
    x = 17,237,764,806,127,348/137,391,037.20
  6. Step 6: Final answer
    x = 125,464,987.80

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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.