Home / 409,769,005.78-614,654,558.43-167,431,909.78

Finding the Fourth Proportional to 409,769,005.78, 614,654,558.43 and 167,431,909.78

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Solution

The fourth proportional to 409,769,005.78, 614,654,558.43 and 167,431,909.78 is: 251,148,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,769,005.78 : 614,654,558.43 = 167,431,909.78 : x
  2. Step 2: Convert to fraction form
    409,769,005.78/614,654,558.43 = 167,431,909.78/x
  3. Step 3: Cross multiply
    409,769,005.78x = 614,654,558.43 × 167,431,909.78
  4. Step 4: Simplify right side
    409,769,005.78x = 102,912,786,572,917,488
  5. Step 5: Solve for x
    x = 102,912,786,572,917,488/409,769,005.78
  6. Step 6: Final answer
    x = 251,148,293.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.