Home / 13,990,512.12-19,306,946.72-8,111,288.87

Finding the Fourth Proportional to 13,990,512.12, 19,306,946.72 and 8,111,288.87

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Solution

The fourth proportional to 13,990,512.12, 19,306,946.72 and 8,111,288.87 is: 11,193,601.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,512.12 : 19,306,946.72 = 8,111,288.87 : x
  2. Step 2: Convert to fraction form
    13,990,512.12/19,306,946.72 = 8,111,288.87/x
  3. Step 3: Cross multiply
    13,990,512.12x = 19,306,946.72 × 8,111,288.87
  4. Step 4: Simplify right side
    13,990,512.12x = 156,604,221,994,137.56
  5. Step 5: Solve for x
    x = 156,604,221,994,137.56/13,990,512.12
  6. Step 6: Final answer
    x = 11,193,601.82

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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.