Home / 12,266,323.80-18,399,485.70-4,188,420.60

Finding the Fourth Proportional to 12,266,323.80, 18,399,485.70 and 4,188,420.60

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Solution

The fourth proportional to 12,266,323.80, 18,399,485.70 and 4,188,420.60 is: 6,282,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266,323.80 : 18,399,485.70 = 4,188,420.60 : x
  2. Step 2: Convert to fraction form
    12,266,323.80/18,399,485.70 = 4,188,420.60/x
  3. Step 3: Cross multiply
    12,266,323.80x = 18,399,485.70 × 4,188,420.60
  4. Step 4: Simplify right side
    12,266,323.80x = 77,064,784,935,285.42
  5. Step 5: Solve for x
    x = 77,064,784,935,285.42/12,266,323.80
  6. Step 6: Final answer
    x = 6,282,630.90

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Double scale
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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.