Home / 38,981,642.34-53,794,013.49-21,577,612.98

Finding the Fourth Proportional to 38,981,642.34, 53,794,013.49 and 21,577,612.98

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Solution

The fourth proportional to 38,981,642.34, 53,794,013.49 and 21,577,612.98 is: 29,776,744.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981,642.34 : 53,794,013.49 = 21,577,612.98 : x
  2. Step 2: Convert to fraction form
    38,981,642.34/53,794,013.49 = 21,577,612.98/x
  3. Step 3: Cross multiply
    38,981,642.34x = 53,794,013.49 × 21,577,612.98
  4. Step 4: Simplify right side
    38,981,642.34x = 1,160,746,403,728,119.25
  5. Step 5: Solve for x
    x = 1,160,746,403,728,119.25/38,981,642.34
  6. Step 6: Final answer
    x = 29,776,744.49

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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.