Home / 39,215,721.48-54,116,609.06-21,333,348.97

Finding the Fourth Proportional to 39,215,721.48, 54,116,609.06 and 21,333,348.97

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Solution

The fourth proportional to 39,215,721.48, 54,116,609.06 and 21,333,348.97 is: 29,439,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,215,721.48 : 54,116,609.06 = 21,333,348.97 : x
  2. Step 2: Convert to fraction form
    39,215,721.48/54,116,609.06 = 21,333,348.97/x
  3. Step 3: Cross multiply
    39,215,721.48x = 54,116,609.06 × 21,333,348.97
  4. Step 4: Simplify right side
    39,215,721.48x = 1,154,488,506,150,043.75
  5. Step 5: Solve for x
    x = 1,154,488,506,150,043.75/39,215,721.48
  6. Step 6: Final answer
    x = 29,439,430.48

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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.