Home / 53,310,456.39-79,965,685.46-12,920,940.39

Finding the Fourth Proportional to 53,310,456.39, 79,965,685.46 and 12,920,940.39

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Solution

The fourth proportional to 53,310,456.39, 79,965,685.46 and 12,920,940.39 is: 19,381,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310,456.39 : 79,965,685.46 = 12,920,940.39 : x
  2. Step 2: Convert to fraction form
    53,310,456.39/79,965,685.46 = 12,920,940.39/x
  3. Step 3: Cross multiply
    53,310,456.39x = 79,965,685.46 × 12,920,940.39
  4. Step 4: Simplify right side
    53,310,456.39x = 1,033,231,855,074,149.75
  5. Step 5: Solve for x
    x = 1,033,231,855,074,149.75/53,310,456.39
  6. Step 6: Final answer
    x = 19,381,410.80

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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.