Home / 442,887,613.40-664,331,420.10-410,638,986.20

Finding the Fourth Proportional to 442,887,613.40, 664,331,420.10 and 410,638,986.20

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Solution

The fourth proportional to 442,887,613.40, 664,331,420.10 and 410,638,986.20 is: 615,958,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,887,613.40 : 664,331,420.10 = 410,638,986.20 : x
  2. Step 2: Convert to fraction form
    442,887,613.40/664,331,420.10 = 410,638,986.20/x
  3. Step 3: Cross multiply
    442,887,613.40x = 664,331,420.10 × 410,638,986.20
  4. Step 4: Simplify right side
    442,887,613.40x = 272,800,380,850,670,304
  5. Step 5: Solve for x
    x = 272,800,380,850,670,304/442,887,613.40
  6. Step 6: Final answer
    x = 615,958,479.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.