Home / 8,752,872.72-13,129,123.48-2,917,480.36

Finding the Fourth Proportional to 8,752,872.72, 13,129,123.48 and 2,917,480.36

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Solution

The fourth proportional to 8,752,872.72, 13,129,123.48 and 2,917,480.36 is: 4,376,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752,872.72 : 13,129,123.48 = 2,917,480.36 : x
  2. Step 2: Convert to fraction form
    8,752,872.72/13,129,123.48 = 2,917,480.36/x
  3. Step 3: Cross multiply
    8,752,872.72x = 13,129,123.48 × 2,917,480.36
  4. Step 4: Simplify right side
    8,752,872.72x = 38,303,959,896,914.85
  5. Step 5: Solve for x
    x = 38,303,959,896,914.85/8,752,872.72
  6. Step 6: Final answer
    x = 4,376,158.68

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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.