Home / 15,321,395.70-21,143,669.76-8,446,123.80

Finding the Fourth Proportional to 15,321,395.70, 21,143,669.76 and 8,446,123.80

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Solution

The fourth proportional to 15,321,395.70, 21,143,669.76 and 8,446,123.80 is: 11,655,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,395.70 : 21,143,669.76 = 8,446,123.80 : x
  2. Step 2: Convert to fraction form
    15,321,395.70/21,143,669.76 = 8,446,123.80/x
  3. Step 3: Cross multiply
    15,321,395.70x = 21,143,669.76 × 8,446,123.80
  4. Step 4: Simplify right side
    15,321,395.70x = 178,582,052,379,276.31
  5. Step 5: Solve for x
    x = 178,582,052,379,276.31/15,321,395.70
  6. Step 6: Final answer
    x = 11,655,730.06

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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.