Home / 12,145,809.20-18,218,713.80-8,744,586.80

Finding the Fourth Proportional to 12,145,809.20, 18,218,713.80 and 8,744,586.80

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Solution

The fourth proportional to 12,145,809.20, 18,218,713.80 and 8,744,586.80 is: 13,116,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,809.20 : 18,218,713.80 = 8,744,586.80 : x
  2. Step 2: Convert to fraction form
    12,145,809.20/18,218,713.80 = 8,744,586.80/x
  3. Step 3: Cross multiply
    12,145,809.20x = 18,218,713.80 × 8,744,586.80
  4. Step 4: Simplify right side
    12,145,809.20x = 159,315,124,208,457.88
  5. Step 5: Solve for x
    x = 159,315,124,208,457.88/12,145,809.20
  6. Step 6: Final answer
    x = 13,116,880.20

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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.