Home / 20,453,853.10-28,226,916.20-11,162,021.90

Finding the Fourth Proportional to 20,453,853.10, 28,226,916.20 and 11,162,021.90

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Solution

The fourth proportional to 20,453,853.10, 28,226,916.20 and 11,162,021.90 is: 15,403,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453,853.10 : 28,226,916.20 = 11,162,021.90 : x
  2. Step 2: Convert to fraction form
    20,453,853.10/28,226,916.20 = 11,162,021.90/x
  3. Step 3: Cross multiply
    20,453,853.10x = 28,226,916.20 × 11,162,021.90
  4. Step 4: Simplify right side
    20,453,853.10x = 315,069,456,793,864.81
  5. Step 5: Solve for x
    x = 315,069,456,793,864.81/20,453,853.10
  6. Step 6: Final answer
    x = 15,403,917.06

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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.