Home / 20,299,349.10-30,449,023.65-5,153,280.60

Finding the Fourth Proportional to 20,299,349.10, 30,449,023.65 and 5,153,280.60

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Solution

The fourth proportional to 20,299,349.10, 30,449,023.65 and 5,153,280.60 is: 7,729,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299,349.10 : 30,449,023.65 = 5,153,280.60 : x
  2. Step 2: Convert to fraction form
    20,299,349.10/30,449,023.65 = 5,153,280.60/x
  3. Step 3: Cross multiply
    20,299,349.10x = 30,449,023.65 × 5,153,280.60
  4. Step 4: Simplify right side
    20,299,349.10x = 156,912,362,864,486.16
  5. Step 5: Solve for x
    x = 156,912,362,864,486.16/20,299,349.10
  6. Step 6: Final answer
    x = 7,729,920.90

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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.