Home / 12,213,601.20-18,320,401.80-7,908,929.10

Finding the Fourth Proportional to 12,213,601.20, 18,320,401.80 and 7,908,929.10

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Solution

The fourth proportional to 12,213,601.20, 18,320,401.80 and 7,908,929.10 is: 11,863,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213,601.20 : 18,320,401.80 = 7,908,929.10 : x
  2. Step 2: Convert to fraction form
    12,213,601.20/18,320,401.80 = 7,908,929.10/x
  3. Step 3: Cross multiply
    12,213,601.20x = 18,320,401.80 × 7,908,929.10
  4. Step 4: Simplify right side
    12,213,601.20x = 144,894,758,919,712.38
  5. Step 5: Solve for x
    x = 144,894,758,919,712.38/12,213,601.20
  6. Step 6: Final answer
    x = 11,863,393.65

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1.5x scale

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.