Home / 99,648,076.95-149,472,115.43-86,016,615.30

Finding the Fourth Proportional to 99,648,076.95, 149,472,115.43 and 86,016,615.30

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Solution

The fourth proportional to 99,648,076.95, 149,472,115.43 and 86,016,615.30 is: 129,024,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648,076.95 : 149,472,115.43 = 86,016,615.30 : x
  2. Step 2: Convert to fraction form
    99,648,076.95/149,472,115.43 = 86,016,615.30/x
  3. Step 3: Cross multiply
    99,648,076.95x = 149,472,115.43 × 86,016,615.30
  4. Step 4: Simplify right side
    99,648,076.95x = 12,857,085,450,589,422
  5. Step 5: Solve for x
    x = 12,857,085,450,589,422/99,648,076.95
  6. Step 6: Final answer
    x = 129,024,922.95

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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.