Home / 13,178,440.20-19,746,665.10-9,777,217.80

Finding the Fourth Proportional to 13,178,440.20, 19,746,665.10 and 9,777,217.80

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Solution

The fourth proportional to 13,178,440.20, 19,746,665.10 and 9,777,217.80 is: 14,650,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,440.20 : 19,746,665.10 = 9,777,217.80 : x
  2. Step 2: Convert to fraction form
    13,178,440.20/19,746,665.10 = 9,777,217.80/x
  3. Step 3: Cross multiply
    13,178,440.20x = 19,746,665.10 × 9,777,217.80
  4. Step 4: Simplify right side
    13,178,440.20x = 193,067,445,506,358.81
  5. Step 5: Solve for x
    x = 193,067,445,506,358.81/13,178,440.20
  6. Step 6: Final answer
    x = 14,650,250.15

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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.