Home / 28,519,687.76-39,356,901.24-15,467,234.72

Finding the Fourth Proportional to 28,519,687.76, 39,356,901.24 and 15,467,234.72

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Solution

The fourth proportional to 28,519,687.76, 39,356,901.24 and 15,467,234.72 is: 21,344,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519,687.76 : 39,356,901.24 = 15,467,234.72 : x
  2. Step 2: Convert to fraction form
    28,519,687.76/39,356,901.24 = 15,467,234.72/x
  3. Step 3: Cross multiply
    28,519,687.76x = 39,356,901.24 × 15,467,234.72
  4. Step 4: Simplify right side
    28,519,687.76x = 608,742,429,330,939.12
  5. Step 5: Solve for x
    x = 608,742,429,330,939.12/28,519,687.76
  6. Step 6: Final answer
    x = 21,344,638.64

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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.