Home / 2,124,086.40-3,186,129.60-1,368,259.20

Finding the Fourth Proportional to 2,124,086.40, 3,186,129.60 and 1,368,259.20

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Solution

The fourth proportional to 2,124,086.40, 3,186,129.60 and 1,368,259.20 is: 2,052,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,086.40 : 3,186,129.60 = 1,368,259.20 : x
  2. Step 2: Convert to fraction form
    2,124,086.40/3,186,129.60 = 1,368,259.20/x
  3. Step 3: Cross multiply
    2,124,086.40x = 3,186,129.60 × 1,368,259.20
  4. Step 4: Simplify right side
    2,124,086.40x = 4,359,451,137,592.32
  5. Step 5: Solve for x
    x = 4,359,451,137,592.32/2,124,086.40
  6. Step 6: Final answer
    x = 2,052,388.80

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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.