Home / 12,825,138.78-19,250,671.14-11,375,688.60

Finding the Fourth Proportional to 12,825,138.78, 19,250,671.14 and 11,375,688.60

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Solution

The fourth proportional to 12,825,138.78, 19,250,671.14 and 11,375,688.60 is: 17,075,030.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825,138.78 : 19,250,671.14 = 11,375,688.60 : x
  2. Step 2: Convert to fraction form
    12,825,138.78/19,250,671.14 = 11,375,688.60/x
  3. Step 3: Cross multiply
    12,825,138.78x = 19,250,671.14 × 11,375,688.60
  4. Step 4: Simplify right side
    12,825,138.78x = 218,989,640,229,647
  5. Step 5: Solve for x
    x = 218,989,640,229,647/12,825,138.78
  6. Step 6: Final answer
    x = 17,075,030.84

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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.