Home / 15,345,904.88-21,177,350.57-8,470,388.77

Finding the Fourth Proportional to 15,345,904.88, 21,177,350.57 and 8,470,388.77

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Solution

The fourth proportional to 15,345,904.88, 21,177,350.57 and 8,470,388.77 is: 11,689,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345,904.88 : 21,177,350.57 = 8,470,388.77 : x
  2. Step 2: Convert to fraction form
    15,345,904.88/21,177,350.57 = 8,470,388.77/x
  3. Step 3: Cross multiply
    15,345,904.88x = 21,177,350.57 × 8,470,388.77
  4. Step 4: Simplify right side
    15,345,904.88x = 179,380,392,414,713.72
  5. Step 5: Solve for x
    x = 179,380,392,414,713.72/15,345,904.88
  6. Step 6: Final answer
    x = 11,689,137.51

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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.