Home / 89,848,986.90-134,773,480.35-86,321,793.30

Finding the Fourth Proportional to 89,848,986.90, 134,773,480.35 and 86,321,793.30

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Solution

The fourth proportional to 89,848,986.90, 134,773,480.35 and 86,321,793.30 is: 129,482,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,848,986.90 : 134,773,480.35 = 86,321,793.30 : x
  2. Step 2: Convert to fraction form
    89,848,986.90/134,773,480.35 = 86,321,793.30/x
  3. Step 3: Cross multiply
    89,848,986.90x = 134,773,480.35 × 86,321,793.30
  4. Step 4: Simplify right side
    89,848,986.90x = 11,633,888,513,094,310
  5. Step 5: Solve for x
    x = 11,633,888,513,094,310/89,848,986.90
  6. Step 6: Final answer
    x = 129,482,689.95

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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.