Home / 143,798,552.40-215,571,857.40-86,313,694.80

Finding the Fourth Proportional to 143,798,552.40, 215,571,857.40 and 86,313,694.80

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Solution

The fourth proportional to 143,798,552.40, 215,571,857.40 and 86,313,694.80 is: 129,394,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,798,552.40 : 215,571,857.40 = 86,313,694.80 : x
  2. Step 2: Convert to fraction form
    143,798,552.40/215,571,857.40 = 86,313,694.80/x
  3. Step 3: Cross multiply
    143,798,552.40x = 215,571,857.40 × 86,313,694.80
  4. Step 4: Simplify right side
    143,798,552.40x = 18,606,803,507,092,720
  5. Step 5: Solve for x
    x = 18,606,803,507,092,720/143,798,552.40
  6. Step 6: Final answer
    x = 129,394,929.20

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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.