Home / 87,186,931-120,321,697.38-48,555,763

Finding the Fourth Proportional to 87,186,931, 120,321,697.38 and 48,555,763

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Solution

The fourth proportional to 87,186,931, 120,321,697.38 and 48,555,763 is: 67,009,031.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,186,931 : 120,321,697.38 = 48,555,763 : x
  2. Step 2: Convert to fraction form
    87,186,931/120,321,697.38 = 48,555,763/x
  3. Step 3: Cross multiply
    87,186,931x = 120,321,697.38 × 48,555,763
  4. Step 4: Simplify right side
    87,186,931x = 5,842,311,821,741,001
  5. Step 5: Solve for x
    x = 5,842,311,821,741,001/87,186,931
  6. Step 6: Final answer
    x = 67,009,031.68

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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.