Home / 487,261,541.70-672,449,367.33-275,587,138.16

Finding the Fourth Proportional to 487,261,541.70, 672,449,367.33 and 275,587,138.16

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Solution

The fourth proportional to 487,261,541.70, 672,449,367.33 and 275,587,138.16 is: 380,326,335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,261,541.70 : 672,449,367.33 = 275,587,138.16 : x
  2. Step 2: Convert to fraction form
    487,261,541.70/672,449,367.33 = 275,587,138.16/x
  3. Step 3: Cross multiply
    487,261,541.70x = 672,449,367.33 × 275,587,138.16
  4. Step 4: Simplify right side
    487,261,541.70x = 185,318,396,696,615,040
  5. Step 5: Solve for x
    x = 185,318,396,696,615,040/487,261,541.70
  6. Step 6: Final answer
    x = 380,326,335.73

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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.