Home / 8,300,409.60-12,450,614.40-7,662,680.40

Finding the Fourth Proportional to 8,300,409.60, 12,450,614.40 and 7,662,680.40

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Solution

The fourth proportional to 8,300,409.60, 12,450,614.40 and 7,662,680.40 is: 11,494,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300,409.60 : 12,450,614.40 = 7,662,680.40 : x
  2. Step 2: Convert to fraction form
    8,300,409.60/12,450,614.40 = 7,662,680.40/x
  3. Step 3: Cross multiply
    8,300,409.60x = 12,450,614.40 × 7,662,680.40
  4. Step 4: Simplify right side
    8,300,409.60x = 95,405,078,930,837.77
  5. Step 5: Solve for x
    x = 95,405,078,930,837.77/8,300,409.60
  6. Step 6: Final answer
    x = 11,494,020.60

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Similar ratio
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1.5x scale

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.