Home / 39,111,644.76-53,969,692.20-21,708,723.48

Finding the Fourth Proportional to 39,111,644.76, 53,969,692.20 and 21,708,723.48

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Solution

The fourth proportional to 39,111,644.76, 53,969,692.20 and 21,708,723.48 is: 29,955,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111,644.76 : 53,969,692.20 = 21,708,723.48 : x
  2. Step 2: Convert to fraction form
    39,111,644.76/53,969,692.20 = 21,708,723.48/x
  3. Step 3: Cross multiply
    39,111,644.76x = 53,969,692.20 × 21,708,723.48
  4. Step 4: Simplify right side
    39,111,644.76x = 1,171,613,124,270,513
  5. Step 5: Solve for x
    x = 1,171,613,124,270,513/39,111,644.76
  6. Step 6: Final answer
    x = 29,955,608.65

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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.