Home / 53,310,072.92-79,965,109.35-12,920,556.92

Finding the Fourth Proportional to 53,310,072.92, 79,965,109.35 and 12,920,556.92

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Solution

The fourth proportional to 53,310,072.92, 79,965,109.35 and 12,920,556.92 is: 19,380,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310,072.92 : 79,965,109.35 = 12,920,556.92 : x
  2. Step 2: Convert to fraction form
    53,310,072.92/79,965,109.35 = 12,920,556.92/x
  3. Step 3: Cross multiply
    53,310,072.92x = 79,965,109.35 × 12,920,556.92
  4. Step 4: Simplify right side
    53,310,072.92x = 1,033,193,746,970,699.12
  5. Step 5: Solve for x
    x = 1,033,193,746,970,699.12/53,310,072.92
  6. Step 6: Final answer
    x = 19,380,835.37

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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.