Home / 216,703,108.74-325,053,786.60-78,496,371.12

Finding the Fourth Proportional to 216,703,108.74, 325,053,786.60 and 78,496,371.12

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Solution

The fourth proportional to 216,703,108.74, 325,053,786.60 and 78,496,371.12 is: 117,744,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,703,108.74 : 325,053,786.60 = 78,496,371.12 : x
  2. Step 2: Convert to fraction form
    216,703,108.74/325,053,786.60 = 78,496,371.12/x
  3. Step 3: Cross multiply
    216,703,108.74x = 325,053,786.60 × 78,496,371.12
  4. Step 4: Simplify right side
    216,703,108.74x = 25,515,542,666,914,888
  5. Step 5: Solve for x
    x = 25,515,542,666,914,888/216,703,108.74
  6. Step 6: Final answer
    x = 117,744,239.18

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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.