Home / 65,373,107.28-90,208,212-40,251,227.28

Finding the Fourth Proportional to 65,373,107.28, 90,208,212 and 40,251,227.28

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Solution

The fourth proportional to 65,373,107.28, 90,208,212 and 40,251,227.28 is: 55,542,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,373,107.28 : 90,208,212 = 40,251,227.28 : x
  2. Step 2: Convert to fraction form
    65,373,107.28/90,208,212 = 40,251,227.28/x
  3. Step 3: Cross multiply
    65,373,107.28x = 90,208,212 × 40,251,227.28
  4. Step 4: Simplify right side
    65,373,107.28x = 3,630,991,243,734,423.50
  5. Step 5: Solve for x
    x = 3,630,991,243,734,423.50/65,373,107.28
  6. Step 6: Final answer
    x = 55,542,583.10

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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.