Home / 20,143,863.71-30,215,757.80-6,311,881.42

Finding the Fourth Proportional to 20,143,863.71, 30,215,757.80 and 6,311,881.42

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Solution

The fourth proportional to 20,143,863.71, 30,215,757.80 and 6,311,881.42 is: 9,467,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,863.71 : 30,215,757.80 = 6,311,881.42 : x
  2. Step 2: Convert to fraction form
    20,143,863.71/30,215,757.80 = 6,311,881.42/x
  3. Step 3: Cross multiply
    20,143,863.71x = 30,215,757.80 × 6,311,881.42
  4. Step 4: Simplify right side
    20,143,863.71x = 190,718,280,141,941.31
  5. Step 5: Solve for x
    x = 190,718,280,141,941.31/20,143,863.71
  6. Step 6: Final answer
    x = 9,467,810.29

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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.