Home / 15,311,488.73-21,129,844.82-8,435,970.72

Finding the Fourth Proportional to 15,311,488.73, 21,129,844.82 and 8,435,970.72

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Solution

The fourth proportional to 15,311,488.73, 21,129,844.82 and 8,435,970.72 is: 11,641,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311,488.73 : 21,129,844.82 = 8,435,970.72 : x
  2. Step 2: Convert to fraction form
    15,311,488.73/21,129,844.82 = 8,435,970.72/x
  3. Step 3: Cross multiply
    15,311,488.73x = 21,129,844.82 × 8,435,970.72
  4. Step 4: Simplify right side
    15,311,488.73x = 178,250,752,177,483.84
  5. Step 5: Solve for x
    x = 178,250,752,177,483.84/15,311,488.73
  6. Step 6: Final answer
    x = 11,641,634.29

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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.