Home / 517,609,614.48-714,393,531-305,907,800.64

Finding the Fourth Proportional to 517,609,614.48, 714,393,531 and 305,907,800.64

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Solution

The fourth proportional to 517,609,614.48, 714,393,531 and 305,907,800.64 is: 422,207,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,609,614.48 : 714,393,531 = 305,907,800.64 : x
  2. Step 2: Convert to fraction form
    517,609,614.48/714,393,531 = 305,907,800.64/x
  3. Step 3: Cross multiply
    517,609,614.48x = 714,393,531 × 305,907,800.64
  4. Step 4: Simplify right side
    517,609,614.48x = 218,538,553,859,653,664
  5. Step 5: Solve for x
    x = 218,538,553,859,653,664/517,609,614.48
  6. Step 6: Final answer
    x = 422,207,292.42

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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.