Home / 65,138,512.40-97,710,910.91-21,418,302.95

Finding the Fourth Proportional to 65,138,512.40, 97,710,910.91 and 21,418,302.95

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Solution

The fourth proportional to 65,138,512.40, 97,710,910.91 and 21,418,302.95 is: 32,128,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,138,512.40 : 97,710,910.91 = 21,418,302.95 : x
  2. Step 2: Convert to fraction form
    65,138,512.40/97,710,910.91 = 21,418,302.95/x
  3. Step 3: Cross multiply
    65,138,512.40x = 97,710,910.91 × 21,418,302.95
  4. Step 4: Simplify right side
    65,138,512.40x = 2,092,801,890,795,194.25
  5. Step 5: Solve for x
    x = 2,092,801,890,795,194.25/65,138,512.40
  6. Step 6: Final answer
    x = 32,128,487.65

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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.