Home / 66,278,089.54-99,383,886.24-38,620,965.16

Finding the Fourth Proportional to 66,278,089.54, 99,383,886.24 and 38,620,965.16

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Solution

The fourth proportional to 66,278,089.54, 99,383,886.24 and 38,620,965.16 is: 57,912,073.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,278,089.54 : 99,383,886.24 = 38,620,965.16 : x
  2. Step 2: Convert to fraction form
    66,278,089.54/99,383,886.24 = 38,620,965.16/x
  3. Step 3: Cross multiply
    66,278,089.54x = 99,383,886.24 × 38,620,965.16
  4. Step 4: Simplify right side
    66,278,089.54x = 3,838,301,607,940,443
  5. Step 5: Solve for x
    x = 3,838,301,607,940,443/66,278,089.54
  6. Step 6: Final answer
    x = 57,912,073.73

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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.