Home / 15,189,095.81-20,961,016.14-8,219,773.70

Finding the Fourth Proportional to 15,189,095.81, 20,961,016.14 and 8,219,773.70

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Solution

The fourth proportional to 15,189,095.81, 20,961,016.14 and 8,219,773.70 is: 11,343,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,095.81 : 20,961,016.14 = 8,219,773.70 : x
  2. Step 2: Convert to fraction form
    15,189,095.81/20,961,016.14 = 8,219,773.70/x
  3. Step 3: Cross multiply
    15,189,095.81x = 20,961,016.14 × 8,219,773.70
  4. Step 4: Simplify right side
    15,189,095.81x = 172,294,809,187,073.03
  5. Step 5: Solve for x
    x = 172,294,809,187,073.03/15,189,095.81
  6. Step 6: Final answer
    x = 11,343,322.30

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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.