Home / 621,609,714.27-857,816,144.51-343,145,259.09

Finding the Fourth Proportional to 621,609,714.27, 857,816,144.51 and 343,145,259.09

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Solution

The fourth proportional to 621,609,714.27, 857,816,144.51 and 343,145,259.09 is: 473,537,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,609,714.27 : 857,816,144.51 = 343,145,259.09 : x
  2. Step 2: Convert to fraction form
    621,609,714.27/857,816,144.51 = 343,145,259.09/x
  3. Step 3: Cross multiply
    621,609,714.27x = 857,816,144.51 × 343,145,259.09
  4. Step 4: Simplify right side
    621,609,714.27x = 294,355,543,157,753,088
  5. Step 5: Solve for x
    x = 294,355,543,157,753,088/621,609,714.27
  6. Step 6: Final answer
    x = 473,537,553.23

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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.