Home / 31,786,820.20-47,680,230.30-15,623,140.60

Finding the Fourth Proportional to 31,786,820.20, 47,680,230.30 and 15,623,140.60

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Solution

The fourth proportional to 31,786,820.20, 47,680,230.30 and 15,623,140.60 is: 23,434,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786,820.20 : 47,680,230.30 = 15,623,140.60 : x
  2. Step 2: Convert to fraction form
    31,786,820.20/47,680,230.30 = 15,623,140.60/x
  3. Step 3: Cross multiply
    31,786,820.20x = 47,680,230.30 × 15,623,140.60
  4. Step 4: Simplify right side
    31,786,820.20x = 744,914,941,817,280.12
  5. Step 5: Solve for x
    x = 744,914,941,817,280.12/31,786,820.20
  6. Step 6: Final answer
    x = 23,434,710.90

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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.