Home / 290,001,571.38-400,203,832.86-157,842,252.72

Finding the Fourth Proportional to 290,001,571.38, 400,203,832.86 and 157,842,252.72

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Solution

The fourth proportional to 290,001,571.38, 400,203,832.86 and 157,842,252.72 is: 217,823,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,001,571.38 : 400,203,832.86 = 157,842,252.72 : x
  2. Step 2: Convert to fraction form
    290,001,571.38/400,203,832.86 = 157,842,252.72/x
  3. Step 3: Cross multiply
    290,001,571.38x = 400,203,832.86 × 157,842,252.72
  4. Step 4: Simplify right side
    290,001,571.38x = 63,169,074,525,800,760
  5. Step 5: Solve for x
    x = 63,169,074,525,800,760/290,001,571.38
  6. Step 6: Final answer
    x = 217,823,214.63

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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.