Home / 8,121,902.40-12,186,134.10-3,573,817.20

Finding the Fourth Proportional to 8,121,902.40, 12,186,134.10 and 3,573,817.20

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Solution

The fourth proportional to 8,121,902.40, 12,186,134.10 and 3,573,817.20 is: 5,362,169.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121,902.40 : 12,186,134.10 = 3,573,817.20 : x
  2. Step 2: Convert to fraction form
    8,121,902.40/12,186,134.10 = 3,573,817.20/x
  3. Step 3: Cross multiply
    8,121,902.40x = 12,186,134.10 × 3,573,817.20
  4. Step 4: Simplify right side
    8,121,902.40x = 43,551,015,648,086.52
  5. Step 5: Solve for x
    x = 43,551,015,648,086.52/8,121,902.40
  6. Step 6: Final answer
    x = 5,362,169.29

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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.