Home / 7,680,626.80-11,520,940.20-6,818,009.20

Finding the Fourth Proportional to 7,680,626.80, 11,520,940.20 and 6,818,009.20

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Solution

The fourth proportional to 7,680,626.80, 11,520,940.20 and 6,818,009.20 is: 10,227,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,626.80 : 11,520,940.20 = 6,818,009.20 : x
  2. Step 2: Convert to fraction form
    7,680,626.80/11,520,940.20 = 6,818,009.20/x
  3. Step 3: Cross multiply
    7,680,626.80x = 11,520,940.20 × 6,818,009.20
  4. Step 4: Simplify right side
    7,680,626.80x = 78,549,876,276,249.84
  5. Step 5: Solve for x
    x = 78,549,876,276,249.84/7,680,626.80
  6. Step 6: Final answer
    x = 10,227,013.80

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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.