Home / 21,009,577.86-28,993,217.13-11,351,785.86

Finding the Fourth Proportional to 21,009,577.86, 28,993,217.13 and 11,351,785.86

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Solution

The fourth proportional to 21,009,577.86, 28,993,217.13 and 11,351,785.86 is: 15,665,464.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009,577.86 : 28,993,217.13 = 11,351,785.86 : x
  2. Step 2: Convert to fraction form
    21,009,577.86/28,993,217.13 = 11,351,785.86/x
  3. Step 3: Cross multiply
    21,009,577.86x = 28,993,217.13 × 11,351,785.86
  4. Step 4: Simplify right side
    21,009,577.86x = 329,124,792,252,243.75
  5. Step 5: Solve for x
    x = 329,124,792,252,243.75/21,009,577.86
  6. Step 6: Final answer
    x = 15,665,464.32

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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.