Home / 18,348,869.80-27,532,162.05-12,945,886.30

Finding the Fourth Proportional to 18,348,869.80, 27,532,162.05 and 12,945,886.30

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Solution

The fourth proportional to 18,348,869.80, 27,532,162.05 and 12,945,886.30 is: 19,425,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348,869.80 : 27,532,162.05 = 12,945,886.30 : x
  2. Step 2: Convert to fraction form
    18,348,869.80/27,532,162.05 = 12,945,886.30/x
  3. Step 3: Cross multiply
    18,348,869.80x = 27,532,162.05 × 12,945,886.30
  4. Step 4: Simplify right side
    18,348,869.80x = 356,428,239,492,474.94
  5. Step 5: Solve for x
    x = 356,428,239,492,474.94/18,348,869.80
  6. Step 6: Final answer
    x = 19,425,078.68

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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.