Home / 18,954,043.40-28,431,065.10-15,174,907.40

Finding the Fourth Proportional to 18,954,043.40, 28,431,065.10 and 15,174,907.40

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Solution

The fourth proportional to 18,954,043.40, 28,431,065.10 and 15,174,907.40 is: 22,762,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954,043.40 : 28,431,065.10 = 15,174,907.40 : x
  2. Step 2: Convert to fraction form
    18,954,043.40/28,431,065.10 = 15,174,907.40/x
  3. Step 3: Cross multiply
    18,954,043.40x = 28,431,065.10 × 15,174,907.40
  4. Step 4: Simplify right side
    18,954,043.40x = 431,438,780,175,871.75
  5. Step 5: Solve for x
    x = 431,438,780,175,871.75/18,954,043.40
  6. Step 6: Final answer
    x = 22,762,361.10

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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.