Home / 7,961,934.12-11,942,909.48-1,978,302.12

Finding the Fourth Proportional to 7,961,934.12, 11,942,909.48 and 1,978,302.12

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Solution

The fourth proportional to 7,961,934.12, 11,942,909.48 and 1,978,302.12 is: 2,967,455.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961,934.12 : 11,942,909.48 = 1,978,302.12 : x
  2. Step 2: Convert to fraction form
    7,961,934.12/11,942,909.48 = 1,978,302.12/x
  3. Step 3: Cross multiply
    7,961,934.12x = 11,942,909.48 × 1,978,302.12
  4. Step 4: Simplify right side
    7,961,934.12x = 23,626,683,143,252.10
  5. Step 5: Solve for x
    x = 23,626,683,143,252.10/7,961,934.12
  6. Step 6: Final answer
    x = 2,967,455.24

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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.