Home / 661,499,729.88-992,399,081.52-218,841,371.46

Finding the Fourth Proportional to 661,499,729.88, 992,399,081.52 and 218,841,371.46

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Solution

The fourth proportional to 661,499,729.88, 992,399,081.52 and 218,841,371.46 is: 328,311,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,499,729.88 : 992,399,081.52 = 218,841,371.46 : x
  2. Step 2: Convert to fraction form
    661,499,729.88/992,399,081.52 = 218,841,371.46/x
  3. Step 3: Cross multiply
    661,499,729.88x = 992,399,081.52 × 218,841,371.46
  4. Step 4: Simplify right side
    661,499,729.88x = 217,177,976,035,481,152
  5. Step 5: Solve for x
    x = 217,177,976,035,481,152/661,499,729.88
  6. Step 6: Final answer
    x = 328,311,511.29

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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.