Home / 5,419,549.86-8,129,328.30-1,376,340.90

Finding the Fourth Proportional to 5,419,549.86, 8,129,328.30 and 1,376,340.90

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Solution

The fourth proportional to 5,419,549.86, 8,129,328.30 and 1,376,340.90 is: 2,064,512.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419,549.86 : 8,129,328.30 = 1,376,340.90 : x
  2. Step 2: Convert to fraction form
    5,419,549.86/8,129,328.30 = 1,376,340.90/x
  3. Step 3: Cross multiply
    5,419,549.86x = 8,129,328.30 × 1,376,340.90
  4. Step 4: Simplify right side
    5,419,549.86x = 11,188,727,028,817.47
  5. Step 5: Solve for x
    x = 11,188,727,028,817.47/5,419,549.86
  6. Step 6: Final answer
    x = 2,064,512.24

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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.