Home / 428,837,002.26-643,327,251.57-336,717,024.18

Finding the Fourth Proportional to 428,837,002.26, 643,327,251.57 and 336,717,024.18

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Solution

The fourth proportional to 428,837,002.26, 643,327,251.57 and 336,717,024.18 is: 505,131,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,837,002.26 : 643,327,251.57 = 336,717,024.18 : x
  2. Step 2: Convert to fraction form
    428,837,002.26/643,327,251.57 = 336,717,024.18/x
  3. Step 3: Cross multiply
    428,837,002.26x = 643,327,251.57 × 336,717,024.18
  4. Step 4: Simplify right side
    428,837,002.26x = 216,619,237,722,548,640
  5. Step 5: Solve for x
    x = 216,619,237,722,548,640/428,837,002.26
  6. Step 6: Final answer
    x = 505,131,871.97

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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.