Home / 72,515,919.72-108,793,810.14-21,397,939.56

Finding the Fourth Proportional to 72,515,919.72, 108,793,810.14 and 21,397,939.56

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Solution

The fourth proportional to 72,515,919.72, 108,793,810.14 and 21,397,939.56 is: 32,102,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,515,919.72 : 108,793,810.14 = 21,397,939.56 : x
  2. Step 2: Convert to fraction form
    72,515,919.72/108,793,810.14 = 21,397,939.56/x
  3. Step 3: Cross multiply
    72,515,919.72x = 108,793,810.14 × 21,397,939.56
  4. Step 4: Simplify right side
    72,515,919.72x = 2,327,963,373,877,835
  5. Step 5: Solve for x
    x = 2,327,963,373,877,835/72,515,919.72
  6. Step 6: Final answer
    x = 32,102,790.43

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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.