Home / 442,887,612.40-664,331,418.60-410,638,985.20

Finding the Fourth Proportional to 442,887,612.40, 664,331,418.60 and 410,638,985.20

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Solution

The fourth proportional to 442,887,612.40, 664,331,418.60 and 410,638,985.20 is: 615,958,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,887,612.40 : 664,331,418.60 = 410,638,985.20 : x
  2. Step 2: Convert to fraction form
    442,887,612.40/664,331,418.60 = 410,638,985.20/x
  3. Step 3: Cross multiply
    442,887,612.40x = 664,331,418.60 × 410,638,985.20
  4. Step 4: Simplify right side
    442,887,612.40x = 272,800,379,570,380,416
  5. Step 5: Solve for x
    x = 272,800,379,570,380,416/442,887,612.40
  6. Step 6: Final answer
    x = 615,958,477.80

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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.