Home / 12,620,520-18,923,202.72-5,788,535.04

Finding the Fourth Proportional to 12,620,520, 18,923,202.72 and 5,788,535.04

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Solution

The fourth proportional to 12,620,520, 18,923,202.72 and 5,788,535.04 is: 8,679,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620,520 : 18,923,202.72 = 5,788,535.04 : x
  2. Step 2: Convert to fraction form
    12,620,520/18,923,202.72 = 5,788,535.04/x
  3. Step 3: Cross multiply
    12,620,520x = 18,923,202.72 × 5,788,535.04
  4. Step 4: Simplify right side
    12,620,520x = 109,537,622,013,743.30
  5. Step 5: Solve for x
    x = 109,537,622,013,743.30/12,620,520
  6. Step 6: Final answer
    x = 8,679,327.16

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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.