Home / 13,484,843.40-20,227,265.10-7,819,638.60

Finding the Fourth Proportional to 13,484,843.40, 20,227,265.10 and 7,819,638.60

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Solution

The fourth proportional to 13,484,843.40, 20,227,265.10 and 7,819,638.60 is: 11,729,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484,843.40 : 20,227,265.10 = 7,819,638.60 : x
  2. Step 2: Convert to fraction form
    13,484,843.40/20,227,265.10 = 7,819,638.60/x
  3. Step 3: Cross multiply
    13,484,843.40x = 20,227,265.10 × 7,819,638.60
  4. Step 4: Simplify right side
    13,484,843.40x = 158,169,902,948,392.88
  5. Step 5: Solve for x
    x = 158,169,902,948,392.88/13,484,843.40
  6. Step 6: Final answer
    x = 11,729,457.90

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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.