Home / 18,687,246.30-28,030,869.45-11,128,974.30

Finding the Fourth Proportional to 18,687,246.30, 28,030,869.45 and 11,128,974.30

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Solution

The fourth proportional to 18,687,246.30, 28,030,869.45 and 11,128,974.30 is: 16,693,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,246.30 : 28,030,869.45 = 11,128,974.30 : x
  2. Step 2: Convert to fraction form
    18,687,246.30/28,030,869.45 = 11,128,974.30/x
  3. Step 3: Cross multiply
    18,687,246.30x = 28,030,869.45 × 11,128,974.30
  4. Step 4: Simplify right side
    18,687,246.30x = 311,954,825,715,705.12
  5. Step 5: Solve for x
    x = 311,954,825,715,705.12/18,687,246.30
  6. Step 6: Final answer
    x = 16,693,461.45

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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.