Home / 31,256,646-43,149,165.56-21,972,174.90

Finding the Fourth Proportional to 31,256,646, 43,149,165.56 and 21,972,174.90

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Solution

The fourth proportional to 31,256,646, 43,149,165.56 and 21,972,174.90 is: 30,332,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,256,646 : 43,149,165.56 = 21,972,174.90 : x
  2. Step 2: Convert to fraction form
    31,256,646/43,149,165.56 = 21,972,174.90/x
  3. Step 3: Cross multiply
    31,256,646x = 43,149,165.56 × 21,972,174.90
  4. Step 4: Simplify right side
    31,256,646x = 948,081,012,473,376.38
  5. Step 5: Solve for x
    x = 948,081,012,473,376.38/31,256,646
  6. Step 6: Final answer
    x = 30,332,141.60

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1.5x scale

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.