Home / 13,608,801.90-20,392,207.65-11,803,214.70

Finding the Fourth Proportional to 13,608,801.90, 20,392,207.65 and 11,803,214.70

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Solution

The fourth proportional to 13,608,801.90, 20,392,207.65 and 11,803,214.70 is: 17,686,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,801.90 : 20,392,207.65 = 11,803,214.70 : x
  2. Step 2: Convert to fraction form
    13,608,801.90/20,392,207.65 = 11,803,214.70/x
  3. Step 3: Cross multiply
    13,608,801.90x = 20,392,207.65 × 11,803,214.70
  4. Step 4: Simplify right side
    13,608,801.90x = 240,693,605,099,932.44
  5. Step 5: Solve for x
    x = 240,693,605,099,932.44/13,608,801.90
  6. Step 6: Final answer
    x = 17,686,612.45

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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.