Home / 13,440,431.80-20,160,647.70-4,921,046.20

Finding the Fourth Proportional to 13,440,431.80, 20,160,647.70 and 4,921,046.20

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Solution

The fourth proportional to 13,440,431.80, 20,160,647.70 and 4,921,046.20 is: 7,381,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440,431.80 : 20,160,647.70 = 4,921,046.20 : x
  2. Step 2: Convert to fraction form
    13,440,431.80/20,160,647.70 = 4,921,046.20/x
  3. Step 3: Cross multiply
    13,440,431.80x = 20,160,647.70 × 4,921,046.20
  4. Step 4: Simplify right side
    13,440,431.80x = 99,211,478,753,623.73
  5. Step 5: Solve for x
    x = 99,211,478,753,623.73/13,440,431.80
  6. Step 6: Final answer
    x = 7,381,569.30

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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.