Home / 28,242,972.54-38,975,877.67-15,853,959.26

Finding the Fourth Proportional to 28,242,972.54, 38,975,877.67 and 15,853,959.26

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Solution

The fourth proportional to 28,242,972.54, 38,975,877.67 and 15,853,959.26 is: 21,878,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,972.54 : 38,975,877.67 = 15,853,959.26 : x
  2. Step 2: Convert to fraction form
    28,242,972.54/38,975,877.67 = 15,853,959.26/x
  3. Step 3: Cross multiply
    28,242,972.54x = 38,975,877.67 × 15,853,959.26
  4. Step 4: Simplify right side
    28,242,972.54x = 617,921,976,468,409.38
  5. Step 5: Solve for x
    x = 617,921,976,468,409.38/28,242,972.54
  6. Step 6: Final answer
    x = 21,878,786.86

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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.