Home / 18,139,271.82-25,032,195.11-9,990,509.82

Finding the Fourth Proportional to 18,139,271.82, 25,032,195.11 and 9,990,509.82

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Solution

The fourth proportional to 18,139,271.82, 25,032,195.11 and 9,990,509.82 is: 13,786,903.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,271.82 : 25,032,195.11 = 9,990,509.82 : x
  2. Step 2: Convert to fraction form
    18,139,271.82/25,032,195.11 = 9,990,509.82/x
  3. Step 3: Cross multiply
    18,139,271.82x = 25,032,195.11 × 9,990,509.82
  4. Step 4: Simplify right side
    18,139,271.82x = 250,084,391,012,658.44
  5. Step 5: Solve for x
    x = 250,084,391,012,658.44/18,139,271.82
  6. Step 6: Final answer
    x = 13,786,903.55

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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.