Home / 12,113,066.68-16,715,442.22-7,218,179.78

Finding the Fourth Proportional to 12,113,066.68, 16,715,442.22 and 7,218,179.78

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Solution

The fourth proportional to 12,113,066.68, 16,715,442.22 and 7,218,179.78 is: 9,960,736.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113,066.68 : 16,715,442.22 = 7,218,179.78 : x
  2. Step 2: Convert to fraction form
    12,113,066.68/16,715,442.22 = 7,218,179.78/x
  3. Step 3: Cross multiply
    12,113,066.68x = 16,715,442.22 × 7,218,179.78
  4. Step 4: Simplify right side
    12,113,066.68x = 120,655,066,944,539.66
  5. Step 5: Solve for x
    x = 120,655,066,944,539.66/12,113,066.68
  6. Step 6: Final answer
    x = 9,960,736.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.