Home / 18,149,467.09-25,017,903.30-12,338,159.75

Finding the Fourth Proportional to 18,149,467.09, 25,017,903.30 and 12,338,159.75

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Solution

The fourth proportional to 18,149,467.09, 25,017,903.30 and 12,338,159.75 is: 17,007,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149,467.09 : 25,017,903.30 = 12,338,159.75 : x
  2. Step 2: Convert to fraction form
    18,149,467.09/25,017,903.30 = 12,338,159.75/x
  3. Step 3: Cross multiply
    18,149,467.09x = 25,017,903.30 × 12,338,159.75
  4. Step 4: Simplify right side
    18,149,467.09x = 308,674,887,587,996.94
  5. Step 5: Solve for x
    x = 308,674,887,587,996.94/18,149,467.09
  6. Step 6: Final answer
    x = 17,007,380.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.