Home / 8,107,405.20-12,161,107.80-7,446,056.40

Finding the Fourth Proportional to 8,107,405.20, 12,161,107.80 and 7,446,056.40

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Solution

The fourth proportional to 8,107,405.20, 12,161,107.80 and 7,446,056.40 is: 11,169,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107,405.20 : 12,161,107.80 = 7,446,056.40 : x
  2. Step 2: Convert to fraction form
    8,107,405.20/12,161,107.80 = 7,446,056.40/x
  3. Step 3: Cross multiply
    8,107,405.20x = 12,161,107.80 × 7,446,056.40
  4. Step 4: Simplify right side
    8,107,405.20x = 90,552,294,565,279.94
  5. Step 5: Solve for x
    x = 90,552,294,565,279.94/8,107,405.20
  6. Step 6: Final answer
    x = 11,169,084.60

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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.