Home / 421,385,401.26-581,507,570.38-233,214,060.49

Finding the Fourth Proportional to 421,385,401.26, 581,507,570.38 and 233,214,060.49

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Solution

The fourth proportional to 421,385,401.26, 581,507,570.38 and 233,214,060.49 is: 321,833,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,385,401.26 : 581,507,570.38 = 233,214,060.49 : x
  2. Step 2: Convert to fraction form
    421,385,401.26/581,507,570.38 = 233,214,060.49/x
  3. Step 3: Cross multiply
    421,385,401.26x = 581,507,570.38 × 233,214,060.49
  4. Step 4: Simplify right side
    421,385,401.26x = 135,615,741,691,086,720
  5. Step 5: Solve for x
    x = 135,615,741,691,086,720/421,385,401.26
  6. Step 6: Final answer
    x = 321,833,032.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.