Home / 553,941,721.60-764,372,976.96-319,068,769.12

Finding the Fourth Proportional to 553,941,721.60, 764,372,976.96 and 319,068,769.12

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Solution

The fourth proportional to 553,941,721.60, 764,372,976.96 and 319,068,769.12 is: 440,276,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,941,721.60 : 764,372,976.96 = 319,068,769.12 : x
  2. Step 2: Convert to fraction form
    553,941,721.60/764,372,976.96 = 319,068,769.12/x
  3. Step 3: Cross multiply
    553,941,721.60x = 764,372,976.96 × 319,068,769.12
  4. Step 4: Simplify right side
    553,941,721.60x = 243,887,544,907,217,344
  5. Step 5: Solve for x
    x = 243,887,544,907,217,344/553,941,721.60
  6. Step 6: Final answer
    x = 440,276,540.65

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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.