Home / 81,525,631.43-122,299,802.78-26,195,131.47

Finding the Fourth Proportional to 81,525,631.43, 122,299,802.78 and 26,195,131.47

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Solution

The fourth proportional to 81,525,631.43, 122,299,802.78 and 26,195,131.47 is: 39,296,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,525,631.43 : 122,299,802.78 = 26,195,131.47 : x
  2. Step 2: Convert to fraction form
    81,525,631.43/122,299,802.78 = 26,195,131.47/x
  3. Step 3: Cross multiply
    81,525,631.43x = 122,299,802.78 × 26,195,131.47
  4. Step 4: Simplify right side
    81,525,631.43x = 3,203,659,412,446,196
  5. Step 5: Solve for x
    x = 3,203,659,412,446,196/81,525,631.43
  6. Step 6: Final answer
    x = 39,296,345.90

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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.