Home / 13,375,665.20-20,069,718.60-6,993,124.40

Finding the Fourth Proportional to 13,375,665.20, 20,069,718.60 and 6,993,124.40

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Solution

The fourth proportional to 13,375,665.20, 20,069,718.60 and 6,993,124.40 is: 10,492,938.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375,665.20 : 20,069,718.60 = 6,993,124.40 : x
  2. Step 2: Convert to fraction form
    13,375,665.20/20,069,718.60 = 6,993,124.40/x
  3. Step 3: Cross multiply
    13,375,665.20x = 20,069,718.60 × 6,993,124.40
  4. Step 4: Simplify right side
    13,375,665.20x = 140,350,038,842,793.86
  5. Step 5: Solve for x
    x = 140,350,038,842,793.86/13,375,665.20
  6. Step 6: Final answer
    x = 10,492,938.99

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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.