Home / 72,856,731.36-100,554,728.94-43,489,578.72

Finding the Fourth Proportional to 72,856,731.36, 100,554,728.94 and 43,489,578.72

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Solution

The fourth proportional to 72,856,731.36, 100,554,728.94 and 43,489,578.72 is: 60,023,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,856,731.36 : 100,554,728.94 = 43,489,578.72 : x
  2. Step 2: Convert to fraction form
    72,856,731.36/100,554,728.94 = 43,489,578.72/x
  3. Step 3: Cross multiply
    72,856,731.36x = 100,554,728.94 × 43,489,578.72
  4. Step 4: Simplify right side
    72,856,731.36x = 4,373,082,799,904,392
  5. Step 5: Solve for x
    x = 4,373,082,799,904,392/72,856,731.36
  6. Step 6: Final answer
    x = 60,023,044.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.