Home / 86,923,246.20-130,384,869.30-72,893,203.80

Finding the Fourth Proportional to 86,923,246.20, 130,384,869.30 and 72,893,203.80

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Solution

The fourth proportional to 86,923,246.20, 130,384,869.30 and 72,893,203.80 is: 109,339,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,923,246.20 : 130,384,869.30 = 72,893,203.80 : x
  2. Step 2: Convert to fraction form
    86,923,246.20/130,384,869.30 = 72,893,203.80/x
  3. Step 3: Cross multiply
    86,923,246.20x = 130,384,869.30 × 72,893,203.80
  4. Step 4: Simplify right side
    86,923,246.20x = 9,504,170,850,321,262
  5. Step 5: Solve for x
    x = 9,504,170,850,321,262/86,923,246.20
  6. Step 6: Final answer
    x = 109,339,805.70

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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.