Home / 320,992,471.44-443,105,203.68-216,711,788.40

Finding the Fourth Proportional to 320,992,471.44, 443,105,203.68 and 216,711,788.40

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Solution

The fourth proportional to 320,992,471.44, 443,105,203.68 and 216,711,788.40 is: 299,153,811.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,992,471.44 : 443,105,203.68 = 216,711,788.40 : x
  2. Step 2: Convert to fraction form
    320,992,471.44/443,105,203.68 = 216,711,788.40/x
  3. Step 3: Cross multiply
    320,992,471.44x = 443,105,203.68 × 216,711,788.40
  4. Step 4: Simplify right side
    320,992,471.44x = 96,026,121,138,839,072
  5. Step 5: Solve for x
    x = 96,026,121,138,839,072/320,992,471.44
  6. Step 6: Final answer
    x = 299,153,811.02

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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.