Home / 20,661,131.10-30,982,119.77-7,703,802.71

Finding the Fourth Proportional to 20,661,131.10, 30,982,119.77 and 7,703,802.71

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Solution

The fourth proportional to 20,661,131.10, 30,982,119.77 and 7,703,802.71 is: 11,552,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661,131.10 : 30,982,119.77 = 7,703,802.71 : x
  2. Step 2: Convert to fraction form
    20,661,131.10/30,982,119.77 = 7,703,802.71/x
  3. Step 3: Cross multiply
    20,661,131.10x = 30,982,119.77 × 7,703,802.71
  4. Step 4: Simplify right side
    20,661,131.10x = 238,680,138,245,670.56
  5. Step 5: Solve for x
    x = 238,680,138,245,670.56/20,661,131.10
  6. Step 6: Final answer
    x = 11,552,133.19

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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.