Home / 12,482,142.40-18,702,218.40-10,676,555.20

Finding the Fourth Proportional to 12,482,142.40, 18,702,218.40 and 10,676,555.20

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Solution

The fourth proportional to 12,482,142.40, 18,702,218.40 and 10,676,555.20 is: 15,996,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,142.40 : 18,702,218.40 = 10,676,555.20 : x
  2. Step 2: Convert to fraction form
    12,482,142.40/18,702,218.40 = 10,676,555.20/x
  3. Step 3: Cross multiply
    12,482,142.40x = 18,702,218.40 × 10,676,555.20
  4. Step 4: Simplify right side
    12,482,142.40x = 199,675,267,110,055.66
  5. Step 5: Solve for x
    x = 199,675,267,110,055.66/12,482,142.40
  6. Step 6: Final answer
    x = 15,996,874.63

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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.