Home / 12,331,715.40-18,460,719.11-7,459,276.43

Finding the Fourth Proportional to 12,331,715.40, 18,460,719.11 and 7,459,276.43

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Solution

The fourth proportional to 12,331,715.40, 18,460,719.11 and 7,459,276.43 is: 11,166,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331,715.40 : 18,460,719.11 = 7,459,276.43 : x
  2. Step 2: Convert to fraction form
    12,331,715.40/18,460,719.11 = 7,459,276.43/x
  3. Step 3: Cross multiply
    12,331,715.40x = 18,460,719.11 × 7,459,276.43
  4. Step 4: Simplify right side
    12,331,715.40x = 137,703,607,002,873.58
  5. Step 5: Solve for x
    x = 137,703,607,002,873.58/12,331,715.40
  6. Step 6: Final answer
    x = 11,166,622.20

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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.