Home / 80,516,806.40-120,838,195.20-37,391,353.40

Finding the Fourth Proportional to 80,516,806.40, 120,838,195.20 and 37,391,353.40

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Solution

The fourth proportional to 80,516,806.40, 120,838,195.20 and 37,391,353.40 is: 56,116,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,516,806.40 : 120,838,195.20 = 37,391,353.40 : x
  2. Step 2: Convert to fraction form
    80,516,806.40/120,838,195.20 = 37,391,353.40/x
  3. Step 3: Cross multiply
    80,516,806.40x = 120,838,195.20 × 37,391,353.40
  4. Step 4: Simplify right side
    80,516,806.40x = 4,518,303,660,941,384
  5. Step 5: Solve for x
    x = 4,518,303,660,941,384/80,516,806.40
  6. Step 6: Final answer
    x = 56,116,280.10

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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.