Home / 358,760,800.80-538,141,201.20-86,131,567.80

Finding the Fourth Proportional to 358,760,800.80, 538,141,201.20 and 86,131,567.80

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Solution

The fourth proportional to 358,760,800.80, 538,141,201.20 and 86,131,567.80 is: 129,197,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,760,800.80 : 538,141,201.20 = 86,131,567.80 : x
  2. Step 2: Convert to fraction form
    358,760,800.80/538,141,201.20 = 86,131,567.80/x
  3. Step 3: Cross multiply
    358,760,800.80x = 538,141,201.20 × 86,131,567.80
  4. Step 4: Simplify right side
    358,760,800.80x = 46,350,945,357,131,240
  5. Step 5: Solve for x
    x = 46,350,945,357,131,240/358,760,800.80
  6. Step 6: Final answer
    x = 129,197,351.70

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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.