Home / 20,808,719.70-31,213,079.55-19,958,414.10

Finding the Fourth Proportional to 20,808,719.70, 31,213,079.55 and 19,958,414.10

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Solution

The fourth proportional to 20,808,719.70, 31,213,079.55 and 19,958,414.10 is: 29,937,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,719.70 : 31,213,079.55 = 19,958,414.10 : x
  2. Step 2: Convert to fraction form
    20,808,719.70/31,213,079.55 = 19,958,414.10/x
  3. Step 3: Cross multiply
    20,808,719.70x = 31,213,079.55 × 19,958,414.10
  4. Step 4: Simplify right side
    20,808,719.70x = 622,963,566,995,141.75
  5. Step 5: Solve for x
    x = 622,963,566,995,141.75/20,808,719.70
  6. Step 6: Final answer
    x = 29,937,621.15

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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.