Home / 21,008,639.39-31,527,121.28-7,361,908.38

Finding the Fourth Proportional to 21,008,639.39, 31,527,121.28 and 7,361,908.38

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Solution

The fourth proportional to 21,008,639.39, 31,527,121.28 and 7,361,908.38 is: 11,047,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,639.39 : 31,527,121.28 = 7,361,908.38 : x
  2. Step 2: Convert to fraction form
    21,008,639.39/31,527,121.28 = 7,361,908.38/x
  3. Step 3: Cross multiply
    21,008,639.39x = 31,527,121.28 × 7,361,908.38
  4. Step 4: Simplify right side
    21,008,639.39x = 232,099,778,311,698.78
  5. Step 5: Solve for x
    x = 232,099,778,311,698.78/21,008,639.39
  6. Step 6: Final answer
    x = 11,047,825.33

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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.