Home / 28,656,079.40-42,984,119.10-19,040,277.80

Finding the Fourth Proportional to 28,656,079.40, 42,984,119.10 and 19,040,277.80

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Solution

The fourth proportional to 28,656,079.40, 42,984,119.10 and 19,040,277.80 is: 28,560,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,079.40 : 42,984,119.10 = 19,040,277.80 : x
  2. Step 2: Convert to fraction form
    28,656,079.40/42,984,119.10 = 19,040,277.80/x
  3. Step 3: Cross multiply
    28,656,079.40x = 42,984,119.10 × 19,040,277.80
  4. Step 4: Simplify right side
    28,656,079.40x = 818,429,568,652,286
  5. Step 5: Solve for x
    x = 818,429,568,652,286/28,656,079.40
  6. Step 6: Final answer
    x = 28,560,416.70

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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.