Home / 122,382,005.20-183,573,007.80-115,201,646.80

Finding the Fourth Proportional to 122,382,005.20, 183,573,007.80 and 115,201,646.80

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Solution

The fourth proportional to 122,382,005.20, 183,573,007.80 and 115,201,646.80 is: 172,802,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,382,005.20 : 183,573,007.80 = 115,201,646.80 : x
  2. Step 2: Convert to fraction form
    122,382,005.20/183,573,007.80 = 115,201,646.80/x
  3. Step 3: Cross multiply
    122,382,005.20x = 183,573,007.80 × 115,201,646.80
  4. Step 4: Simplify right side
    122,382,005.20x = 21,147,912,806,589,244
  5. Step 5: Solve for x
    x = 21,147,912,806,589,244/122,382,005.20
  6. Step 6: Final answer
    x = 172,802,470.20

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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.