Home / 28,638,486.40-42,981,230.40-28,414,537.60

Finding the Fourth Proportional to 28,638,486.40, 42,981,230.40 and 28,414,537.60

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Solution

The fourth proportional to 28,638,486.40, 42,981,230.40 and 28,414,537.60 is: 42,645,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638,486.40 : 42,981,230.40 = 28,414,537.60 : x
  2. Step 2: Convert to fraction form
    28,638,486.40/42,981,230.40 = 28,414,537.60/x
  3. Step 3: Cross multiply
    28,638,486.40x = 42,981,230.40 × 28,414,537.60
  4. Step 4: Simplify right side
    28,638,486.40x = 1,221,291,787,295,063
  5. Step 5: Solve for x
    x = 1,221,291,787,295,063/28,638,486.40
  6. Step 6: Final answer
    x = 42,645,123.43

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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.