Home / 12,906,128.78-19,359,727.32-3,808,226.36

Finding the Fourth Proportional to 12,906,128.78, 19,359,727.32 and 3,808,226.36

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Solution

The fourth proportional to 12,906,128.78, 19,359,727.32 and 3,808,226.36 is: 5,712,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906,128.78 : 19,359,727.32 = 3,808,226.36 : x
  2. Step 2: Convert to fraction form
    12,906,128.78/19,359,727.32 = 3,808,226.36/x
  3. Step 3: Cross multiply
    12,906,128.78x = 19,359,727.32 × 3,808,226.36
  4. Step 4: Simplify right side
    12,906,128.78x = 73,726,223,902,436.16
  5. Step 5: Solve for x
    x = 73,726,223,902,436.16/12,906,128.78
  6. Step 6: Final answer
    x = 5,712,497.15

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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.