Home / 12,852,007.80-19,278,011.70-5,659,839.60

Finding the Fourth Proportional to 12,852,007.80, 19,278,011.70 and 5,659,839.60

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Solution

The fourth proportional to 12,852,007.80, 19,278,011.70 and 5,659,839.60 is: 8,489,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852,007.80 : 19,278,011.70 = 5,659,839.60 : x
  2. Step 2: Convert to fraction form
    12,852,007.80/19,278,011.70 = 5,659,839.60/x
  3. Step 3: Cross multiply
    12,852,007.80x = 19,278,011.70 × 5,659,839.60
  4. Step 4: Simplify right side
    12,852,007.80x = 109,110,454,028,923.31
  5. Step 5: Solve for x
    x = 109,110,454,028,923.31/12,852,007.80
  6. Step 6: Final answer
    x = 8,489,759.40

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Double scale
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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.