Home / 12,455,786.40-18,683,679.60-5,724,200.40

Finding the Fourth Proportional to 12,455,786.40, 18,683,679.60 and 5,724,200.40

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Solution

The fourth proportional to 12,455,786.40, 18,683,679.60 and 5,724,200.40 is: 8,586,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,786.40 : 18,683,679.60 = 5,724,200.40 : x
  2. Step 2: Convert to fraction form
    12,455,786.40/18,683,679.60 = 5,724,200.40/x
  3. Step 3: Cross multiply
    12,455,786.40x = 18,683,679.60 × 5,724,200.40
  4. Step 4: Simplify right side
    12,455,786.40x = 106,949,126,239,791.86
  5. Step 5: Solve for x
    x = 106,949,126,239,791.86/12,455,786.40
  6. Step 6: Final answer
    x = 8,586,300.60

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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.