Home / 26,989,126.80-40,485,789.72-7,820,159.28

Finding the Fourth Proportional to 26,989,126.80, 40,485,789.72 and 7,820,159.28

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Solution

The fourth proportional to 26,989,126.80, 40,485,789.72 and 7,820,159.28 is: 11,730,847.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,989,126.80 : 40,485,789.72 = 7,820,159.28 : x
  2. Step 2: Convert to fraction form
    26,989,126.80/40,485,789.72 = 7,820,159.28/x
  3. Step 3: Cross multiply
    26,989,126.80x = 40,485,789.72 × 7,820,159.28
  4. Step 4: Simplify right side
    26,989,126.80x = 316,605,324,186,986.62
  5. Step 5: Solve for x
    x = 316,605,324,186,986.62/26,989,126.80
  6. Step 6: Final answer
    x = 11,730,847.26

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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.