Home / 212,616,267.20-318,924,400.80-115,618,443.20

Finding the Fourth Proportional to 212,616,267.20, 318,924,400.80 and 115,618,443.20

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Solution

The fourth proportional to 212,616,267.20, 318,924,400.80 and 115,618,443.20 is: 173,427,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,616,267.20 : 318,924,400.80 = 115,618,443.20 : x
  2. Step 2: Convert to fraction form
    212,616,267.20/318,924,400.80 = 115,618,443.20/x
  3. Step 3: Cross multiply
    212,616,267.20x = 318,924,400.80 × 115,618,443.20
  4. Step 4: Simplify right side
    212,616,267.20x = 36,873,542,718,988,840
  5. Step 5: Solve for x
    x = 36,873,542,718,988,840/212,616,267.20
  6. Step 6: Final answer
    x = 173,427,664.80

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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.