Home / 12,362,409.60-18,543,614.40-8,331,331.20

Finding the Fourth Proportional to 12,362,409.60, 18,543,614.40 and 8,331,331.20

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Solution

The fourth proportional to 12,362,409.60, 18,543,614.40 and 8,331,331.20 is: 12,496,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362,409.60 : 18,543,614.40 = 8,331,331.20 : x
  2. Step 2: Convert to fraction form
    12,362,409.60/18,543,614.40 = 8,331,331.20/x
  3. Step 3: Cross multiply
    12,362,409.60x = 18,543,614.40 × 8,331,331.20
  4. Step 4: Simplify right side
    12,362,409.60x = 154,492,993,211,489.28
  5. Step 5: Solve for x
    x = 154,492,993,211,489.28/12,362,409.60
  6. Step 6: Final answer
    x = 12,496,996.80

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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.