Home / 487,261,540.95-672,449,366.30-275,587,137.41

Finding the Fourth Proportional to 487,261,540.95, 672,449,366.30 and 275,587,137.41

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Solution

The fourth proportional to 487,261,540.95, 672,449,366.30 and 275,587,137.41 is: 380,326,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,261,540.95 : 672,449,366.30 = 275,587,137.41 : x
  2. Step 2: Convert to fraction form
    487,261,540.95/672,449,366.30 = 275,587,137.41/x
  3. Step 3: Cross multiply
    487,261,540.95x = 672,449,366.30 × 275,587,137.41
  4. Step 4: Simplify right side
    487,261,540.95x = 185,318,395,907,045,312
  5. Step 5: Solve for x
    x = 185,318,395,907,045,312/487,261,540.95
  6. Step 6: Final answer
    x = 380,326,334.70

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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.