Home / 8,077,907.20-12,116,860.80-7,416,558.40

Finding the Fourth Proportional to 8,077,907.20, 12,116,860.80 and 7,416,558.40

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Solution

The fourth proportional to 8,077,907.20, 12,116,860.80 and 7,416,558.40 is: 11,124,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077,907.20 : 12,116,860.80 = 7,416,558.40 : x
  2. Step 2: Convert to fraction form
    8,077,907.20/12,116,860.80 = 7,416,558.40/x
  3. Step 3: Cross multiply
    8,077,907.20x = 12,116,860.80 × 7,416,558.40
  4. Step 4: Simplify right side
    8,077,907.20x = 89,865,405,747,870.73
  5. Step 5: Solve for x
    x = 89,865,405,747,870.73/8,077,907.20
  6. Step 6: Final answer
    x = 11,124,837.60

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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.