Home / 12,655,127.42-18,989,601.76-5,367,453.60

Finding the Fourth Proportional to 12,655,127.42, 18,989,601.76 and 5,367,453.60

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Solution

The fourth proportional to 12,655,127.42, 18,989,601.76 and 5,367,453.60 is: 8,054,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655,127.42 : 18,989,601.76 = 5,367,453.60 : x
  2. Step 2: Convert to fraction form
    12,655,127.42/18,989,601.76 = 5,367,453.60/x
  3. Step 3: Cross multiply
    12,655,127.42x = 18,989,601.76 × 5,367,453.60
  4. Step 4: Simplify right side
    12,655,127.42x = 101,925,806,315,859.70
  5. Step 5: Solve for x
    x = 101,925,806,315,859.70/12,655,127.42
  6. Step 6: Final answer
    x = 8,054,111.43

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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.