Home / 18,343,872.80-27,515,809.20-14,105,434.40

Finding the Fourth Proportional to 18,343,872.80, 27,515,809.20 and 14,105,434.40

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Solution

The fourth proportional to 18,343,872.80, 27,515,809.20 and 14,105,434.40 is: 21,158,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343,872.80 : 27,515,809.20 = 14,105,434.40 : x
  2. Step 2: Convert to fraction form
    18,343,872.80/27,515,809.20 = 14,105,434.40/x
  3. Step 3: Cross multiply
    18,343,872.80x = 27,515,809.20 × 14,105,434.40
  4. Step 4: Simplify right side
    18,343,872.80x = 388,122,441,633,516.50
  5. Step 5: Solve for x
    x = 388,122,441,633,516.50/18,343,872.80
  6. Step 6: Final answer
    x = 21,158,151.60

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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.