Home / 12,226,677.45-18,338,891.68-4,138,728.63

Finding the Fourth Proportional to 12,226,677.45, 18,338,891.68 and 4,138,728.63

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Solution

The fourth proportional to 12,226,677.45, 18,338,891.68 and 4,138,728.63 is: 6,207,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226,677.45 : 18,338,891.68 = 4,138,728.63 : x
  2. Step 2: Convert to fraction form
    12,226,677.45/18,338,891.68 = 4,138,728.63/x
  3. Step 3: Cross multiply
    12,226,677.45x = 18,338,891.68 × 4,138,728.63
  4. Step 4: Simplify right side
    12,226,677.45x = 75,899,696,038,484.80
  5. Step 5: Solve for x
    x = 75,899,696,038,484.80/12,226,677.45
  6. Step 6: Final answer
    x = 6,207,712.30

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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.