Home / 15,035,728.76-20,749,319.92-8,160,212.60

Finding the Fourth Proportional to 15,035,728.76, 20,749,319.92 and 8,160,212.60

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Solution

The fourth proportional to 15,035,728.76, 20,749,319.92 and 8,160,212.60 is: 11,261,101.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035,728.76 : 20,749,319.92 = 8,160,212.60 : x
  2. Step 2: Convert to fraction form
    15,035,728.76/20,749,319.92 = 8,160,212.60/x
  3. Step 3: Cross multiply
    15,035,728.76x = 20,749,319.92 × 8,160,212.60
  4. Step 4: Simplify right side
    15,035,728.76x = 169,318,861,852,615
  5. Step 5: Solve for x
    x = 169,318,861,852,615/15,035,728.76
  6. Step 6: Final answer
    x = 11,261,101.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.