Home / 310,619,189.82-428,663,454.04-171,398,917.02

Finding the Fourth Proportional to 310,619,189.82, 428,663,454.04 and 171,398,917.02

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Solution

The fourth proportional to 310,619,189.82, 428,663,454.04 and 171,398,917.02 is: 236,535,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,619,189.82 : 428,663,454.04 = 171,398,917.02 : x
  2. Step 2: Convert to fraction form
    310,619,189.82/428,663,454.04 = 171,398,917.02/x
  3. Step 3: Cross multiply
    310,619,189.82x = 428,663,454.04 × 171,398,917.02
  4. Step 4: Simplify right side
    310,619,189.82x = 73,472,451,788,508,560
  5. Step 5: Solve for x
    x = 73,472,451,788,508,560/310,619,189.82
  6. Step 6: Final answer
    x = 236,535,456.26

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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.