Home / 203,622,881.40-305,434,322.10-74,234,712.60

Finding the Fourth Proportional to 203,622,881.40, 305,434,322.10 and 74,234,712.60

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Solution

The fourth proportional to 203,622,881.40, 305,434,322.10 and 74,234,712.60 is: 111,352,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,622,881.40 : 305,434,322.10 = 74,234,712.60 : x
  2. Step 2: Convert to fraction form
    203,622,881.40/305,434,322.10 = 74,234,712.60/x
  3. Step 3: Cross multiply
    203,622,881.40x = 305,434,322.10 × 74,234,712.60
  4. Step 4: Simplify right side
    203,622,881.40x = 22,673,829,119,269,328
  5. Step 5: Solve for x
    x = 22,673,829,119,269,328/203,622,881.40
  6. Step 6: Final answer
    x = 111,352,068.90

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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.