Home / 20,102,685.90-30,135,964.20-7,963,961.10

Finding the Fourth Proportional to 20,102,685.90, 30,135,964.20 and 7,963,961.10

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Solution

The fourth proportional to 20,102,685.90, 30,135,964.20 and 7,963,961.10 is: 11,938,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,685.90 : 30,135,964.20 = 7,963,961.10 : x
  2. Step 2: Convert to fraction form
    20,102,685.90/30,135,964.20 = 7,963,961.10/x
  3. Step 3: Cross multiply
    20,102,685.90x = 30,135,964.20 × 7,963,961.10
  4. Step 4: Simplify right side
    20,102,685.90x = 240,001,646,599,792.59
  5. Step 5: Solve for x
    x = 240,001,646,599,792.59/20,102,685.90
  6. Step 6: Final answer
    x = 11,938,785.09

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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.