Home / 21,952,634.50-30,305,166.42-15,431,853.70

Finding the Fourth Proportional to 21,952,634.50, 30,305,166.42 and 15,431,853.70

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Solution

The fourth proportional to 21,952,634.50, 30,305,166.42 and 15,431,853.70 is: 21,303,360.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952,634.50 : 30,305,166.42 = 15,431,853.70 : x
  2. Step 2: Convert to fraction form
    21,952,634.50/30,305,166.42 = 15,431,853.70/x
  3. Step 3: Cross multiply
    21,952,634.50x = 30,305,166.42 × 15,431,853.70
  4. Step 4: Simplify right side
    21,952,634.50x = 467,664,894,547,592.75
  5. Step 5: Solve for x
    x = 467,664,894,547,592.75/21,952,634.50
  6. Step 6: Final answer
    x = 21,303,360.86

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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.