Home / 28,242,972.66-38,975,877.84-15,853,959.38

Finding the Fourth Proportional to 28,242,972.66, 38,975,877.84 and 15,853,959.38

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Solution

The fourth proportional to 28,242,972.66, 38,975,877.84 and 15,853,959.38 is: 21,878,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,972.66 : 38,975,877.84 = 15,853,959.38 : x
  2. Step 2: Convert to fraction form
    28,242,972.66/38,975,877.84 = 15,853,959.38/x
  3. Step 3: Cross multiply
    28,242,972.66x = 38,975,877.84 × 15,853,959.38
  4. Step 4: Simplify right side
    28,242,972.66x = 617,921,983,995,932.38
  5. Step 5: Solve for x
    x = 617,921,983,995,932.38/28,242,972.66
  6. Step 6: Final answer
    x = 21,878,787.03

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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.