Home / 106,290,031.20-159,435,046.80-80,591,906.40

Finding the Fourth Proportional to 106,290,031.20, 159,435,046.80 and 80,591,906.40

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Solution

The fourth proportional to 106,290,031.20, 159,435,046.80 and 80,591,906.40 is: 120,887,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,290,031.20 : 159,435,046.80 = 80,591,906.40 : x
  2. Step 2: Convert to fraction form
    106,290,031.20/159,435,046.80 = 80,591,906.40/x
  3. Step 3: Cross multiply
    106,290,031.20x = 159,435,046.80 × 80,591,906.40
  4. Step 4: Simplify right side
    106,290,031.20x = 12,849,174,368,585,222
  5. Step 5: Solve for x
    x = 12,849,174,368,585,222/106,290,031.20
  6. Step 6: Final answer
    x = 120,887,859.60

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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.