Home / 28,467,918.80-42,643,817.40-17,652,021.20

Finding the Fourth Proportional to 28,467,918.80, 42,643,817.40 and 17,652,021.20

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Solution

The fourth proportional to 28,467,918.80, 42,643,817.40 and 17,652,021.20 is: 26,442,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467,918.80 : 42,643,817.40 = 17,652,021.20 : x
  2. Step 2: Convert to fraction form
    28,467,918.80/42,643,817.40 = 17,652,021.20/x
  3. Step 3: Cross multiply
    28,467,918.80x = 42,643,817.40 × 17,652,021.20
  4. Step 4: Simplify right side
    28,467,918.80x = 752,749,568,793,728.88
  5. Step 5: Solve for x
    x = 752,749,568,793,728.88/28,467,918.80
  6. Step 6: Final answer
    x = 26,442,030.21

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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.