Home / 65,853,934.80-98,784,634.68-20,422,188.24

Finding the Fourth Proportional to 65,853,934.80, 98,784,634.68 and 20,422,188.24

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Solution

The fourth proportional to 65,853,934.80, 98,784,634.68 and 20,422,188.24 is: 30,634,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,853,934.80 : 98,784,634.68 = 20,422,188.24 : x
  2. Step 2: Convert to fraction form
    65,853,934.80/98,784,634.68 = 20,422,188.24/x
  3. Step 3: Cross multiply
    65,853,934.80x = 98,784,634.68 × 20,422,188.24
  4. Step 4: Simplify right side
    65,853,934.80x = 2,017,398,404,654,592.25
  5. Step 5: Solve for x
    x = 2,017,398,404,654,592.25/65,853,934.80
  6. Step 6: Final answer
    x = 30,634,439.85

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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.