Home / 312,751,877.27-431,604,182.73-171,621,863.27

Finding the Fourth Proportional to 312,751,877.27, 431,604,182.73 and 171,621,863.27

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Solution

The fourth proportional to 312,751,877.27, 431,604,182.73 and 171,621,863.27 is: 236,841,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,751,877.27 : 431,604,182.73 = 171,621,863.27 : x
  2. Step 2: Convert to fraction form
    312,751,877.27/431,604,182.73 = 171,621,863.27/x
  3. Step 3: Cross multiply
    312,751,877.27x = 431,604,182.73 × 171,621,863.27
  4. Step 4: Simplify right side
    312,751,877.27x = 74,072,714,035,248,160
  5. Step 5: Solve for x
    x = 74,072,714,035,248,160/312,751,877.27
  6. Step 6: Final answer
    x = 236,841,788.71

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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.