Home / 28,400,938.40-42,629,401.20-14,040,221.60

Finding the Fourth Proportional to 28,400,938.40, 42,629,401.20 and 14,040,221.60

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Solution

The fourth proportional to 28,400,938.40, 42,629,401.20 and 14,040,221.60 is: 21,074,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400,938.40 : 42,629,401.20 = 14,040,221.60 : x
  2. Step 2: Convert to fraction form
    28,400,938.40/42,629,401.20 = 14,040,221.60/x
  3. Step 3: Cross multiply
    28,400,938.40x = 42,629,401.20 × 14,040,221.60
  4. Step 4: Simplify right side
    28,400,938.40x = 598,526,239,523,306
  5. Step 5: Solve for x
    x = 598,526,239,523,306/28,400,938.40
  6. Step 6: Final answer
    x = 21,074,171.25

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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.