Home / 18,456,857.80-27,685,286.70-13,355,024.20

Finding the Fourth Proportional to 18,456,857.80, 27,685,286.70 and 13,355,024.20

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Solution

The fourth proportional to 18,456,857.80, 27,685,286.70 and 13,355,024.20 is: 20,032,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456,857.80 : 27,685,286.70 = 13,355,024.20 : x
  2. Step 2: Convert to fraction form
    18,456,857.80/27,685,286.70 = 13,355,024.20/x
  3. Step 3: Cross multiply
    18,456,857.80x = 27,685,286.70 × 13,355,024.20
  4. Step 4: Simplify right side
    18,456,857.80x = 369,737,673,862,438.12
  5. Step 5: Solve for x
    x = 369,737,673,862,438.12/18,456,857.80
  6. Step 6: Final answer
    x = 20,032,536.30

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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.