Home / 13,375,669.20-20,069,724.60-6,993,128.40

Finding the Fourth Proportional to 13,375,669.20, 20,069,724.60 and 6,993,128.40

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Solution

The fourth proportional to 13,375,669.20, 20,069,724.60 and 6,993,128.40 is: 10,492,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375,669.20 : 20,069,724.60 = 6,993,128.40 : x
  2. Step 2: Convert to fraction form
    13,375,669.20/20,069,724.60 = 6,993,128.40/x
  3. Step 3: Cross multiply
    13,375,669.20x = 20,069,724.60 × 6,993,128.40
  4. Step 4: Simplify right side
    13,375,669.20x = 140,350,161,080,438.66
  5. Step 5: Solve for x
    x = 140,350,161,080,438.66/13,375,669.20
  6. Step 6: Final answer
    x = 10,492,944.99

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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.