Home / 203,920,214.40-305,837,812.80-74,588,745.60

Finding the Fourth Proportional to 203,920,214.40, 305,837,812.80 and 74,588,745.60

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Solution

The fourth proportional to 203,920,214.40, 305,837,812.80 and 74,588,745.60 is: 111,867,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,920,214.40 : 305,837,812.80 = 74,588,745.60 : x
  2. Step 2: Convert to fraction form
    203,920,214.40/305,837,812.80 = 74,588,745.60/x
  3. Step 3: Cross multiply
    203,920,214.40x = 305,837,812.80 × 74,588,745.60
  4. Step 4: Simplify right side
    203,920,214.40x = 22,812,058,813,799,624
  5. Step 5: Solve for x
    x = 22,812,058,813,799,624/203,920,214.40
  6. Step 6: Final answer
    x = 111,867,569.78

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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.