Home / 8,680,930.80-13,021,396.20-8,238,562.80

Finding the Fourth Proportional to 8,680,930.80, 13,021,396.20 and 8,238,562.80

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Solution

The fourth proportional to 8,680,930.80, 13,021,396.20 and 8,238,562.80 is: 12,357,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,930.80 : 13,021,396.20 = 8,238,562.80 : x
  2. Step 2: Convert to fraction form
    8,680,930.80/13,021,396.20 = 8,238,562.80/x
  3. Step 3: Cross multiply
    8,680,930.80x = 13,021,396.20 × 8,238,562.80
  4. Step 4: Simplify right side
    8,680,930.80x = 107,277,590,337,381.34
  5. Step 5: Solve for x
    x = 107,277,590,337,381.34/8,680,930.80
  6. Step 6: Final answer
    x = 12,357,844.20

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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.