Home / 8,507,998.80-12,761,998.20-2,118,200.40

Finding the Fourth Proportional to 8,507,998.80, 12,761,998.20 and 2,118,200.40

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Solution

The fourth proportional to 8,507,998.80, 12,761,998.20 and 2,118,200.40 is: 3,177,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507,998.80 : 12,761,998.20 = 2,118,200.40 : x
  2. Step 2: Convert to fraction form
    8,507,998.80/12,761,998.20 = 2,118,200.40/x
  3. Step 3: Cross multiply
    8,507,998.80x = 12,761,998.20 × 2,118,200.40
  4. Step 4: Simplify right side
    8,507,998.80x = 27,032,469,692,039.28
  5. Step 5: Solve for x
    x = 27,032,469,692,039.28/8,507,998.80
  6. Step 6: Final answer
    x = 3,177,300.60

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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.