Home / 78,168,022.20-117,252,033.30-57,760,687.80

Finding the Fourth Proportional to 78,168,022.20, 117,252,033.30 and 57,760,687.80

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Solution

The fourth proportional to 78,168,022.20, 117,252,033.30 and 57,760,687.80 is: 86,641,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,168,022.20 : 117,252,033.30 = 57,760,687.80 : x
  2. Step 2: Convert to fraction form
    78,168,022.20/117,252,033.30 = 57,760,687.80/x
  3. Step 3: Cross multiply
    78,168,022.20x = 117,252,033.30 × 57,760,687.80
  4. Step 4: Simplify right side
    78,168,022.20x = 6,772,558,089,356,503
  5. Step 5: Solve for x
    x = 6,772,558,089,356,503/78,168,022.20
  6. Step 6: Final answer
    x = 86,641,031.70

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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.