Home / 31,929,421.20-47,894,131.80-7,994,893.20

Finding the Fourth Proportional to 31,929,421.20, 47,894,131.80 and 7,994,893.20

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Solution

The fourth proportional to 31,929,421.20, 47,894,131.80 and 7,994,893.20 is: 11,992,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,929,421.20 : 47,894,131.80 = 7,994,893.20 : x
  2. Step 2: Convert to fraction form
    31,929,421.20/47,894,131.80 = 7,994,893.20/x
  3. Step 3: Cross multiply
    31,929,421.20x = 47,894,131.80 × 7,994,893.20
  4. Step 4: Simplify right side
    31,929,421.20x = 382,908,468,647,723.75
  5. Step 5: Solve for x
    x = 382,908,468,647,723.75/31,929,421.20
  6. Step 6: Final answer
    x = 11,992,339.80

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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.