Home / 40,142,974.94-55,397,693.67-21,808,391.66

Finding the Fourth Proportional to 40,142,974.94, 55,397,693.67 and 21,808,391.66

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Solution

The fourth proportional to 40,142,974.94, 55,397,693.67 and 21,808,391.66 is: 30,095,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142,974.94 : 55,397,693.67 = 21,808,391.66 : x
  2. Step 2: Convert to fraction form
    40,142,974.94/55,397,693.67 = 21,808,391.66/x
  3. Step 3: Cross multiply
    40,142,974.94x = 55,397,693.67 × 21,808,391.66
  4. Step 4: Simplify right side
    40,142,974.94x = 1,208,134,600,616,062.75
  5. Step 5: Solve for x
    x = 1,208,134,600,616,062.75/40,142,974.94
  6. Step 6: Final answer
    x = 30,095,791.42

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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.