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Finding the Fourth Proportional to 13,802,520.40, 20,703,780.60 and 9,497,848.30

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Solution

The fourth proportional to 13,802,520.40, 20,703,780.60 and 9,497,848.30 is: 14,246,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802,520.40 : 20,703,780.60 = 9,497,848.30 : x
  2. Step 2: Convert to fraction form
    13,802,520.40/20,703,780.60 = 9,497,848.30/x
  3. Step 3: Cross multiply
    13,802,520.40x = 20,703,780.60 × 9,497,848.30
  4. Step 4: Simplify right side
    13,802,520.40x = 196,641,367,375,283
  5. Step 5: Solve for x
    x = 196,641,367,375,283/13,802,520.40
  6. Step 6: Final answer
    x = 14,246,772.45

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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.