Home / 84,744,007.20-127,116,010.80-79,642,173.60

Finding the Fourth Proportional to 84,744,007.20, 127,116,010.80 and 79,642,173.60

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Solution

The fourth proportional to 84,744,007.20, 127,116,010.80 and 79,642,173.60 is: 119,463,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744,007.20 : 127,116,010.80 = 79,642,173.60 : x
  2. Step 2: Convert to fraction form
    84,744,007.20/127,116,010.80 = 79,642,173.60/x
  3. Step 3: Cross multiply
    84,744,007.20x = 127,116,010.80 × 79,642,173.60
  4. Step 4: Simplify right side
    84,744,007.20x = 10,123,795,399,473,074
  5. Step 5: Solve for x
    x = 10,123,795,399,473,074/84,744,007.20
  6. Step 6: Final answer
    x = 119,463,260.40

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Similar ratio
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1.5x scale

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.