Home / 28,780,031.43-43,192,433.52-20,087,662.23

Finding the Fourth Proportional to 28,780,031.43, 43,192,433.52 and 20,087,662.23

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Solution

The fourth proportional to 28,780,031.43, 43,192,433.52 and 20,087,662.23 is: 30,147,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780,031.43 : 43,192,433.52 = 20,087,662.23 : x
  2. Step 2: Convert to fraction form
    28,780,031.43/43,192,433.52 = 20,087,662.23/x
  3. Step 3: Cross multiply
    28,780,031.43x = 43,192,433.52 × 20,087,662.23
  4. Step 4: Simplify right side
    28,780,031.43x = 867,635,015,441,490
  5. Step 5: Solve for x
    x = 867,635,015,441,490/28,780,031.43
  6. Step 6: Final answer
    x = 30,147,118.41

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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.