Home / 13,486,570.70-20,229,856.05-4,965,143.90

Finding the Fourth Proportional to 13,486,570.70, 20,229,856.05 and 4,965,143.90

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Solution

The fourth proportional to 13,486,570.70, 20,229,856.05 and 4,965,143.90 is: 7,447,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,570.70 : 20,229,856.05 = 4,965,143.90 : x
  2. Step 2: Convert to fraction form
    13,486,570.70/20,229,856.05 = 4,965,143.90/x
  3. Step 3: Cross multiply
    13,486,570.70x = 20,229,856.05 × 4,965,143.90
  4. Step 4: Simplify right side
    13,486,570.70x = 100,444,146,364,535.61
  5. Step 5: Solve for x
    x = 100,444,146,364,535.61/13,486,570.70
  6. Step 6: Final answer
    x = 7,447,715.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.