Home / 31,672,809.70-47,489,968.95-12,481,447.30

Finding the Fourth Proportional to 31,672,809.70, 47,489,968.95 and 12,481,447.30

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Solution

The fourth proportional to 31,672,809.70, 47,489,968.95 and 12,481,447.30 is: 18,714,586.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,672,809.70 : 47,489,968.95 = 12,481,447.30 : x
  2. Step 2: Convert to fraction form
    31,672,809.70/47,489,968.95 = 12,481,447.30/x
  3. Step 3: Cross multiply
    31,672,809.70x = 47,489,968.95 × 12,481,447.30
  4. Step 4: Simplify right side
    31,672,809.70x = 592,743,544,728,061.38
  5. Step 5: Solve for x
    x = 592,743,544,728,061.38/31,672,809.70
  6. Step 6: Final answer
    x = 18,714,586.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.