Home / 291,250,908.38-401,926,238.19-157,288,811.73

Finding the Fourth Proportional to 291,250,908.38, 401,926,238.19 and 157,288,811.73

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Solution

The fourth proportional to 291,250,908.38, 401,926,238.19 and 157,288,811.73 is: 217,058,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,250,908.38 : 401,926,238.19 = 157,288,811.73 : x
  2. Step 2: Convert to fraction form
    291,250,908.38/401,926,238.19 = 157,288,811.73/x
  3. Step 3: Cross multiply
    291,250,908.38x = 401,926,238.19 × 157,288,811.73
  4. Step 4: Simplify right side
    291,250,908.38x = 63,218,500,409,430,280
  5. Step 5: Solve for x
    x = 63,218,500,409,430,280/291,250,908.38
  6. Step 6: Final answer
    x = 217,058,551.89

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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.