Home / 39,109,853.06-53,970,785.21-21,705,187.46

Finding the Fourth Proportional to 39,109,853.06, 53,970,785.21 and 21,705,187.46

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Solution

The fourth proportional to 39,109,853.06, 53,970,785.21 and 21,705,187.46 is: 29,952,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109,853.06 : 53,970,785.21 = 21,705,187.46 : x
  2. Step 2: Convert to fraction form
    39,109,853.06/53,970,785.21 = 21,705,187.46/x
  3. Step 3: Cross multiply
    39,109,853.06x = 53,970,785.21 × 21,705,187.46
  4. Step 4: Simplify right side
    39,109,853.06x = 1,171,446,010,346,445.50
  5. Step 5: Solve for x
    x = 1,171,446,010,346,445.50/39,109,853.06
  6. Step 6: Final answer
    x = 29,952,708.04

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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.