Home / 463,278,339.18-639,321,635.16-251,583,319.35

Finding the Fourth Proportional to 463,278,339.18, 639,321,635.16 and 251,583,319.35

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Solution

The fourth proportional to 463,278,339.18, 639,321,635.16 and 251,583,319.35 is: 347,183,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,278,339.18 : 639,321,635.16 = 251,583,319.35 : x
  2. Step 2: Convert to fraction form
    463,278,339.18/639,321,635.16 = 251,583,319.35/x
  3. Step 3: Cross multiply
    463,278,339.18x = 639,321,635.16 × 251,583,319.35
  4. Step 4: Simplify right side
    463,278,339.18x = 160,842,659,105,822,464
  5. Step 5: Solve for x
    x = 160,842,659,105,822,464/463,278,339.18
  6. Step 6: Final answer
    x = 347,183,637.79

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1.5x scale

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.