Home / 39,864,532.79-55,011,850.62-21,982,743.60

Finding the Fourth Proportional to 39,864,532.79, 55,011,850.62 and 21,982,743.60

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Solution

The fourth proportional to 39,864,532.79, 55,011,850.62 and 21,982,743.60 is: 30,335,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,864,532.79 : 55,011,850.62 = 21,982,743.60 : x
  2. Step 2: Convert to fraction form
    39,864,532.79/55,011,850.62 = 21,982,743.60/x
  3. Step 3: Cross multiply
    39,864,532.79x = 55,011,850.62 × 21,982,743.60
  4. Step 4: Simplify right side
    39,864,532.79x = 1,209,311,407,037,721.75
  5. Step 5: Solve for x
    x = 1,209,311,407,037,721.75/39,864,532.79
  6. Step 6: Final answer
    x = 30,335,521.89

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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.