Home / 12,806,720.90-19,211,426.69-4,171,494.23

Finding the Fourth Proportional to 12,806,720.90, 19,211,426.69 and 4,171,494.23

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Solution

The fourth proportional to 12,806,720.90, 19,211,426.69 and 4,171,494.23 is: 6,257,679.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806,720.90 : 19,211,426.69 = 4,171,494.23 : x
  2. Step 2: Convert to fraction form
    12,806,720.90/19,211,426.69 = 4,171,494.23/x
  3. Step 3: Cross multiply
    12,806,720.90x = 19,211,426.69 × 4,171,494.23
  4. Step 4: Simplify right side
    12,806,720.90x = 80,140,355,565,995.89
  5. Step 5: Solve for x
    x = 80,140,355,565,995.89/12,806,720.90
  6. Step 6: Final answer
    x = 6,257,679.56

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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.