Home / 26,989,128.30-40,485,791.97-7,820,160.78

Finding the Fourth Proportional to 26,989,128.30, 40,485,791.97 and 7,820,160.78

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Solution

The fourth proportional to 26,989,128.30, 40,485,791.97 and 7,820,160.78 is: 11,730,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,989,128.30 : 40,485,791.97 = 7,820,160.78 : x
  2. Step 2: Convert to fraction form
    26,989,128.30/40,485,791.97 = 7,820,160.78/x
  3. Step 3: Cross multiply
    26,989,128.30x = 40,485,791.97 × 7,820,160.78
  4. Step 4: Simplify right side
    26,989,128.30x = 316,605,402,511,032.94
  5. Step 5: Solve for x
    x = 316,605,402,511,032.94/26,989,128.30
  6. Step 6: Final answer
    x = 11,730,849.51

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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.