Home / 28,294,014.60-42,436,757.94-18,129,901.80

Finding the Fourth Proportional to 28,294,014.60, 42,436,757.94 and 18,129,901.80

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Solution

The fourth proportional to 28,294,014.60, 42,436,757.94 and 18,129,901.80 is: 27,192,120.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294,014.60 : 42,436,757.94 = 18,129,901.80 : x
  2. Step 2: Convert to fraction form
    28,294,014.60/42,436,757.94 = 18,129,901.80/x
  3. Step 3: Cross multiply
    28,294,014.60x = 42,436,757.94 × 18,129,901.80
  4. Step 4: Simplify right side
    28,294,014.60x = 769,374,254,162,570.25
  5. Step 5: Solve for x
    x = 769,374,254,162,570.25/28,294,014.60
  6. Step 6: Final answer
    x = 27,192,120.49

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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.