Home / 40,026,696.30-55,236,814.59-21,691,981.86

Finding the Fourth Proportional to 40,026,696.30, 55,236,814.59 and 21,691,981.86

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Solution

The fourth proportional to 40,026,696.30, 55,236,814.59 and 21,691,981.86 is: 29,934,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,026,696.30 : 55,236,814.59 = 21,691,981.86 : x
  2. Step 2: Convert to fraction form
    40,026,696.30/55,236,814.59 = 21,691,981.86/x
  3. Step 3: Cross multiply
    40,026,696.30x = 55,236,814.59 × 21,691,981.86
  4. Step 4: Simplify right side
    40,026,696.30x = 1,198,195,980,090,463.50
  5. Step 5: Solve for x
    x = 1,198,195,980,090,463.50/40,026,696.30
  6. Step 6: Final answer
    x = 29,934,920.71

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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.