Home / 78,028,192.26-107,678,914.65-43,223,137.02

Finding the Fourth Proportional to 78,028,192.26, 107,678,914.65 and 43,223,137.02

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Solution

The fourth proportional to 78,028,192.26, 107,678,914.65 and 43,223,137.02 is: 59,647,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,028,192.26 : 107,678,914.65 = 43,223,137.02 : x
  2. Step 2: Convert to fraction form
    78,028,192.26/107,678,914.65 = 43,223,137.02/x
  3. Step 3: Cross multiply
    78,028,192.26x = 107,678,914.65 × 43,223,137.02
  4. Step 4: Simplify right side
    78,028,192.26x = 4,654,220,482,081,836
  5. Step 5: Solve for x
    x = 4,654,220,482,081,836/78,028,192.26
  6. Step 6: Final answer
    x = 59,647,934.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.