Home / 319,100,917.80-478,667,123.10-166,045,909.80

Finding the Fourth Proportional to 319,100,917.80, 478,667,123.10 and 166,045,909.80

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Solution

The fourth proportional to 319,100,917.80, 478,667,123.10 and 166,045,909.80 is: 249,077,058.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,100,917.80 : 478,667,123.10 = 166,045,909.80 : x
  2. Step 2: Convert to fraction form
    319,100,917.80/478,667,123.10 = 166,045,909.80/x
  3. Step 3: Cross multiply
    319,100,917.80x = 478,667,123.10 × 166,045,909.80
  4. Step 4: Simplify right side
    319,100,917.80x = 79,480,717,946,488,112
  5. Step 5: Solve for x
    x = 79,480,717,946,488,112/319,100,917.80
  6. Step 6: Final answer
    x = 249,077,058.43

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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.