Home / 13,319,310.40-18,380,647.65-7,207,738.90

Finding the Fourth Proportional to 13,319,310.40, 18,380,647.65 and 7,207,738.90

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Solution

The fourth proportional to 13,319,310.40, 18,380,647.65 and 7,207,738.90 is: 9,946,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,310.40 : 18,380,647.65 = 7,207,738.90 : x
  2. Step 2: Convert to fraction form
    13,319,310.40/18,380,647.65 = 7,207,738.90/x
  3. Step 3: Cross multiply
    13,319,310.40x = 18,380,647.65 × 7,207,738.90
  4. Step 4: Simplify right side
    13,319,310.40x = 132,482,909,074,098.58
  5. Step 5: Solve for x
    x = 132,482,909,074,098.58/13,319,310.40
  6. Step 6: Final answer
    x = 9,946,679.30

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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.