Home / 18,405,079.82-25,399,187.84-10,145,461.22

Finding the Fourth Proportional to 18,405,079.82, 25,399,187.84 and 10,145,461.22

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Solution

The fourth proportional to 18,405,079.82, 25,399,187.84 and 10,145,461.22 is: 14,000,834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405,079.82 : 25,399,187.84 = 10,145,461.22 : x
  2. Step 2: Convert to fraction form
    18,405,079.82/25,399,187.84 = 10,145,461.22/x
  3. Step 3: Cross multiply
    18,405,079.82x = 25,399,187.84 × 10,145,461.22
  4. Step 4: Simplify right side
    18,405,079.82x = 257,686,475,148,583.28
  5. Step 5: Solve for x
    x = 257,686,475,148,583.28/18,405,079.82
  6. Step 6: Final answer
    x = 14,000,834.43

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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.