Home / 12,643,369.68-17,447,893.42-6,842,149.96

Finding the Fourth Proportional to 12,643,369.68, 17,447,893.42 and 6,842,149.96

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Solution

The fourth proportional to 12,643,369.68, 17,447,893.42 and 6,842,149.96 is: 9,442,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,369.68 : 17,447,893.42 = 6,842,149.96 : x
  2. Step 2: Convert to fraction form
    12,643,369.68/17,447,893.42 = 6,842,149.96/x
  3. Step 3: Cross multiply
    12,643,369.68x = 17,447,893.42 × 6,842,149.96
  4. Step 4: Simplify right side
    12,643,369.68x = 119,381,103,265,737.28
  5. Step 5: Solve for x
    x = 119,381,103,265,737.28/12,643,369.68
  6. Step 6: Final answer
    x = 9,442,190.36

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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.