Home / 217,276,040.80-325,914,061.20-115,239,368.80

Finding the Fourth Proportional to 217,276,040.80, 325,914,061.20 and 115,239,368.80

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Solution

The fourth proportional to 217,276,040.80, 325,914,061.20 and 115,239,368.80 is: 172,859,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,276,040.80 : 325,914,061.20 = 115,239,368.80 : x
  2. Step 2: Convert to fraction form
    217,276,040.80/325,914,061.20 = 115,239,368.80/x
  3. Step 3: Cross multiply
    217,276,040.80x = 325,914,061.20 × 115,239,368.80
  4. Step 4: Simplify right side
    217,276,040.80x = 37,558,130,695,732,568
  5. Step 5: Solve for x
    x = 37,558,130,695,732,568/217,276,040.80
  6. Step 6: Final answer
    x = 172,859,053.20

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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.