Home / 12,008,585.78-18,013,986.01-3,921,603.80

Finding the Fourth Proportional to 12,008,585.78, 18,013,986.01 and 3,921,603.80

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Solution

The fourth proportional to 12,008,585.78, 18,013,986.01 and 3,921,603.80 is: 5,882,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008,585.78 : 18,013,986.01 = 3,921,603.80 : x
  2. Step 2: Convert to fraction form
    12,008,585.78/18,013,986.01 = 3,921,603.80/x
  3. Step 3: Cross multiply
    12,008,585.78x = 18,013,986.01 × 3,921,603.80
  4. Step 4: Simplify right side
    12,008,585.78x = 70,643,715,980,158.83
  5. Step 5: Solve for x
    x = 70,643,715,980,158.83/12,008,585.78
  6. Step 6: Final answer
    x = 5,882,767.32

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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.