Home / 115,390,431.12-159,238,766.90-63,179,452.95

Finding the Fourth Proportional to 115,390,431.12, 159,238,766.90 and 63,179,452.95

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Solution

The fourth proportional to 115,390,431.12, 159,238,766.90 and 63,179,452.95 is: 87,187,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,390,431.12 : 159,238,766.90 = 63,179,452.95 : x
  2. Step 2: Convert to fraction form
    115,390,431.12/159,238,766.90 = 63,179,452.95/x
  3. Step 3: Cross multiply
    115,390,431.12x = 159,238,766.90 × 63,179,452.95
  4. Step 4: Simplify right side
    115,390,431.12x = 10,060,618,180,735,370
  5. Step 5: Solve for x
    x = 10,060,618,180,735,370/115,390,431.12
  6. Step 6: Final answer
    x = 87,187,629.71

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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.