Home / 13,824,578.60-20,736,867.90-12,431,119.40

Finding the Fourth Proportional to 13,824,578.60, 20,736,867.90 and 12,431,119.40

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Solution

The fourth proportional to 13,824,578.60, 20,736,867.90 and 12,431,119.40 is: 18,646,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824,578.60 : 20,736,867.90 = 12,431,119.40 : x
  2. Step 2: Convert to fraction form
    13,824,578.60/20,736,867.90 = 12,431,119.40/x
  3. Step 3: Cross multiply
    13,824,578.60x = 20,736,867.90 × 12,431,119.40
  4. Step 4: Simplify right side
    13,824,578.60x = 257,782,480,846,927.25
  5. Step 5: Solve for x
    x = 257,782,480,846,927.25/13,824,578.60
  6. Step 6: Final answer
    x = 18,646,679.10

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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.