Home / 28,757,049.90-43,156,998.36-21,100,479.90

Finding the Fourth Proportional to 28,757,049.90, 43,156,998.36 and 21,100,479.90

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Solution

The fourth proportional to 28,757,049.90, 43,156,998.36 and 21,100,479.90 is: 31,666,439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757,049.90 : 43,156,998.36 = 21,100,479.90 : x
  2. Step 2: Convert to fraction form
    28,757,049.90/43,156,998.36 = 21,100,479.90/x
  3. Step 3: Cross multiply
    28,757,049.90x = 43,156,998.36 × 21,100,479.90
  4. Step 4: Simplify right side
    28,757,049.90x = 910,633,376,439,512.88
  5. Step 5: Solve for x
    x = 910,633,376,439,512.88/28,757,049.90
  6. Step 6: Final answer
    x = 31,666,439.35

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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.