Home / 203,387,999.80-305,081,999.70-67,066,166.20

Finding the Fourth Proportional to 203,387,999.80, 305,081,999.70 and 67,066,166.20

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Solution

The fourth proportional to 203,387,999.80, 305,081,999.70 and 67,066,166.20 is: 100,599,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,387,999.80 : 305,081,999.70 = 67,066,166.20 : x
  2. Step 2: Convert to fraction form
    203,387,999.80/305,081,999.70 = 67,066,166.20/x
  3. Step 3: Cross multiply
    203,387,999.80x = 305,081,999.70 × 67,066,166.20
  4. Step 4: Simplify right side
    203,387,999.80x = 20,460,680,096,508,552
  5. Step 5: Solve for x
    x = 20,460,680,096,508,552/203,387,999.80
  6. Step 6: Final answer
    x = 100,599,249.30

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1.5x scale

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.