Home / 13,990,512.36-19,306,947.05-8,111,289.11

Finding the Fourth Proportional to 13,990,512.36, 19,306,947.05 and 8,111,289.11

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Solution

The fourth proportional to 13,990,512.36, 19,306,947.05 and 8,111,289.11 is: 11,193,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,512.36 : 19,306,947.05 = 8,111,289.11 : x
  2. Step 2: Convert to fraction form
    13,990,512.36/19,306,947.05 = 8,111,289.11/x
  3. Step 3: Cross multiply
    13,990,512.36x = 19,306,947.05 × 8,111,289.11
  4. Step 4: Simplify right side
    13,990,512.36x = 156,604,229,216,920.47
  5. Step 5: Solve for x
    x = 156,604,229,216,920.47/13,990,512.36
  6. Step 6: Final answer
    x = 11,193,602.15

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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.