Home / 12,886,511.90-17,782,326.96-7,587,364.46

Finding the Fourth Proportional to 12,886,511.90, 17,782,326.96 and 7,587,364.46

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Solution

The fourth proportional to 12,886,511.90, 17,782,326.96 and 7,587,364.46 is: 10,469,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,511.90 : 17,782,326.96 = 7,587,364.46 : x
  2. Step 2: Convert to fraction form
    12,886,511.90/17,782,326.96 = 7,587,364.46/x
  3. Step 3: Cross multiply
    12,886,511.90x = 17,782,326.96 × 7,587,364.46
  4. Step 4: Simplify right side
    12,886,511.90x = 134,920,995,503,492.22
  5. Step 5: Solve for x
    x = 134,920,995,503,492.22/12,886,511.90
  6. Step 6: Final answer
    x = 10,469,939.16

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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.