Home / 27,709,521.78-38,238,010.34-15,318,826.58

Finding the Fourth Proportional to 27,709,521.78, 38,238,010.34 and 15,318,826.58

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Solution

The fourth proportional to 27,709,521.78, 38,238,010.34 and 15,318,826.58 is: 21,139,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709,521.78 : 38,238,010.34 = 15,318,826.58 : x
  2. Step 2: Convert to fraction form
    27,709,521.78/38,238,010.34 = 15,318,826.58/x
  3. Step 3: Cross multiply
    27,709,521.78x = 38,238,010.34 × 15,318,826.58
  4. Step 4: Simplify right side
    27,709,521.78x = 585,761,449,162,706.88
  5. Step 5: Solve for x
    x = 585,761,449,162,706.88/27,709,521.78
  6. Step 6: Final answer
    x = 21,139,356.13

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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.