Home / 21,811,947.71-30,098,717.91-12,645,180.95

Finding the Fourth Proportional to 21,811,947.71, 30,098,717.91 and 12,645,180.95

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Solution

The fourth proportional to 21,811,947.71, 30,098,717.91 and 12,645,180.95 is: 17,449,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811,947.71 : 30,098,717.91 = 12,645,180.95 : x
  2. Step 2: Convert to fraction form
    21,811,947.71/30,098,717.91 = 12,645,180.95/x
  3. Step 3: Cross multiply
    21,811,947.71x = 30,098,717.91 × 12,645,180.95
  4. Step 4: Simplify right side
    21,811,947.71x = 380,603,734,184,462.25
  5. Step 5: Solve for x
    x = 380,603,734,184,462.25/21,811,947.71
  6. Step 6: Final answer
    x = 17,449,323.62

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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.