Home / 12,145,025.09-18,220,731.53-4,364,724.76

Finding the Fourth Proportional to 12,145,025.09, 18,220,731.53 and 4,364,724.76

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Solution

The fourth proportional to 12,145,025.09, 18,220,731.53 and 4,364,724.76 is: 6,548,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,025.09 : 18,220,731.53 = 4,364,724.76 : x
  2. Step 2: Convert to fraction form
    12,145,025.09/18,220,731.53 = 4,364,724.76/x
  3. Step 3: Cross multiply
    12,145,025.09x = 18,220,731.53 × 4,364,724.76
  4. Step 4: Simplify right side
    12,145,025.09x = 79,528,477,986,928.23
  5. Step 5: Solve for x
    x = 79,528,477,986,928.23/12,145,025.09
  6. Step 6: Final answer
    x = 6,548,234.97

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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.