Home / 65,758,234.32-90,744,129.36-36,390,805.20

Finding the Fourth Proportional to 65,758,234.32, 90,744,129.36 and 36,390,805.20

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Solution

The fourth proportional to 65,758,234.32, 90,744,129.36 and 36,390,805.20 is: 50,218,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,758,234.32 : 90,744,129.36 = 36,390,805.20 : x
  2. Step 2: Convert to fraction form
    65,758,234.32/90,744,129.36 = 36,390,805.20/x
  3. Step 3: Cross multiply
    65,758,234.32x = 90,744,129.36 × 36,390,805.20
  4. Step 4: Simplify right side
    65,758,234.32x = 3,302,251,934,583,361
  5. Step 5: Solve for x
    x = 3,302,251,934,583,361/65,758,234.32
  6. Step 6: Final answer
    x = 50,218,074.87

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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.