Home / 12,215,349.71-18,323,014.13-3,117,446.57

Finding the Fourth Proportional to 12,215,349.71, 18,323,014.13 and 3,117,446.57

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Solution

The fourth proportional to 12,215,349.71, 18,323,014.13 and 3,117,446.57 is: 4,676,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215,349.71 : 18,323,014.13 = 3,117,446.57 : x
  2. Step 2: Convert to fraction form
    12,215,349.71/18,323,014.13 = 3,117,446.57/x
  3. Step 3: Cross multiply
    12,215,349.71x = 18,323,014.13 × 3,117,446.57
  4. Step 4: Simplify right side
    12,215,349.71x = 57,121,017,467,808.58
  5. Step 5: Solve for x
    x = 57,121,017,467,808.58/12,215,349.71
  6. Step 6: Final answer
    x = 4,676,167.19

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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.