Home / 82,023,364.80-123,035,047.20-80,747,906.40

Finding the Fourth Proportional to 82,023,364.80, 123,035,047.20 and 80,747,906.40

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Solution

The fourth proportional to 82,023,364.80, 123,035,047.20 and 80,747,906.40 is: 121,121,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,023,364.80 : 123,035,047.20 = 80,747,906.40 : x
  2. Step 2: Convert to fraction form
    82,023,364.80/123,035,047.20 = 80,747,906.40/x
  3. Step 3: Cross multiply
    82,023,364.80x = 123,035,047.20 × 80,747,906.40
  4. Step 4: Simplify right side
    82,023,364.80x = 9,934,822,475,225,184
  5. Step 5: Solve for x
    x = 9,934,822,475,225,184/82,023,364.80
  6. Step 6: Final answer
    x = 121,121,859.60

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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.