Home / 13,820,747.40-20,731,121.10-7,102,283.40

Finding the Fourth Proportional to 13,820,747.40, 20,731,121.10 and 7,102,283.40

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Solution

The fourth proportional to 13,820,747.40, 20,731,121.10 and 7,102,283.40 is: 10,653,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820,747.40 : 20,731,121.10 = 7,102,283.40 : x
  2. Step 2: Convert to fraction form
    13,820,747.40/20,731,121.10 = 7,102,283.40/x
  3. Step 3: Cross multiply
    13,820,747.40x = 20,731,121.10 × 7,102,283.40
  4. Step 4: Simplify right side
    13,820,747.40x = 147,238,297,251,919.75
  5. Step 5: Solve for x
    x = 147,238,297,251,919.75/13,820,747.40
  6. Step 6: Final answer
    x = 10,653,425.10

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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.