Home / 21,040,737.36-29,025,519.60-12,778,601.28

Finding the Fourth Proportional to 21,040,737.36, 29,025,519.60 and 12,778,601.28

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Solution

The fourth proportional to 21,040,737.36, 29,025,519.60 and 12,778,601.28 is: 17,627,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040,737.36 : 29,025,519.60 = 12,778,601.28 : x
  2. Step 2: Convert to fraction form
    21,040,737.36/29,025,519.60 = 12,778,601.28/x
  3. Step 3: Cross multiply
    21,040,737.36x = 29,025,519.60 × 12,778,601.28
  4. Step 4: Simplify right side
    21,040,737.36x = 370,905,541,913,225.06
  5. Step 5: Solve for x
    x = 370,905,541,913,225.06/21,040,737.36
  6. Step 6: Final answer
    x = 17,627,972.61

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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.