Home / 39,521,680-54,539,918.42-21,433,744

Finding the Fourth Proportional to 39,521,680, 54,539,918.42 and 21,433,744

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Solution

The fourth proportional to 39,521,680, 54,539,918.42 and 21,433,744 is: 29,578,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521,680 : 54,539,918.42 = 21,433,744 : x
  2. Step 2: Convert to fraction form
    39,521,680/54,539,918.42 = 21,433,744/x
  3. Step 3: Cross multiply
    39,521,680x = 54,539,918.42 × 21,433,744
  4. Step 4: Simplify right side
    39,521,680x = 1,168,994,649,195,164.50
  5. Step 5: Solve for x
    x = 1,168,994,649,195,164.50/39,521,680
  6. Step 6: Final answer
    x = 29,578,566.73

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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.