Home / 129,590,324.59-285,595,284.43

Finding the Third Proportional to 129,590,324.59 and 285,595,284.43

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Solution

The third proportional to 129,590,324.59 and 285,595,284.43 is: 629,403,983.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,590,324.59 : 285,595,284.43 = 285,595,284.43 : x
  2. Step 2: Convert to fraction form
    129,590,324.59/285,595,284.43 = 285,595,284.43/x
  3. Step 3: Cross multiply
    129,590,324.59x = 285,595,284.43 × 285,595,284.43
  4. Step 4: Simplify right side
    129,590,324.59x = 81,564,666,487,361,696
  5. Step 5: Solve for x
    x = 81,564,666,487,361,696/129,590,324.59
  6. Step 6: Final answer
    x = 629,403,983.23

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.