Home / 13,629,385.80-20,426,712.30-7,242,697.80

Finding the Fourth Proportional to 13,629,385.80, 20,426,712.30 and 7,242,697.80

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Solution

The fourth proportional to 13,629,385.80, 20,426,712.30 and 7,242,697.80 is: 10,854,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629,385.80 : 20,426,712.30 = 7,242,697.80 : x
  2. Step 2: Convert to fraction form
    13,629,385.80/20,426,712.30 = 7,242,697.80/x
  3. Step 3: Cross multiply
    13,629,385.80x = 20,426,712.30 × 7,242,697.80
  4. Step 4: Simplify right side
    13,629,385.80x = 147,944,504,236,442.94
  5. Step 5: Solve for x
    x = 147,944,504,236,442.94/13,629,385.80
  6. Step 6: Final answer
    x = 10,854,818.14

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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.