Home / 312,751,878.27-431,604,184.11-171,621,864.27

Finding the Fourth Proportional to 312,751,878.27, 431,604,184.11 and 171,621,864.27

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Solution

The fourth proportional to 312,751,878.27, 431,604,184.11 and 171,621,864.27 is: 236,841,790.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,751,878.27 : 431,604,184.11 = 171,621,864.27 : x
  2. Step 2: Convert to fraction form
    312,751,878.27/431,604,184.11 = 171,621,864.27/x
  3. Step 3: Cross multiply
    312,751,878.27x = 431,604,184.11 × 171,621,864.27
  4. Step 4: Simplify right side
    312,751,878.27x = 74,072,714,703,690,512
  5. Step 5: Solve for x
    x = 74,072,714,703,690,512/312,751,878.27
  6. Step 6: Final answer
    x = 236,841,790.09

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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.