Home / 661,499,796.56-992,399,180.54-218,841,437.34

Finding the Fourth Proportional to 661,499,796.56, 992,399,180.54 and 218,841,437.34

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Solution

The fourth proportional to 661,499,796.56, 992,399,180.54 and 218,841,437.34 is: 328,311,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,499,796.56 : 992,399,180.54 = 218,841,437.34 : x
  2. Step 2: Convert to fraction form
    661,499,796.56/992,399,180.54 = 218,841,437.34/x
  3. Step 3: Cross multiply
    661,499,796.56x = 992,399,180.54 × 218,841,437.34
  4. Step 4: Simplify right side
    661,499,796.56x = 217,178,063,083,317,536
  5. Step 5: Solve for x
    x = 217,178,063,083,317,536/661,499,796.56
  6. Step 6: Final answer
    x = 328,311,609.79

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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.