Home / 15,189,165.96-20,960,972.64-8,219,838.48

Finding the Fourth Proportional to 15,189,165.96, 20,960,972.64 and 8,219,838.48

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Solution

The fourth proportional to 15,189,165.96, 20,960,972.64 and 8,219,838.48 is: 11,343,335.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,165.96 : 20,960,972.64 = 8,219,838.48 : x
  2. Step 2: Convert to fraction form
    15,189,165.96/20,960,972.64 = 8,219,838.48/x
  3. Step 3: Cross multiply
    15,189,165.96x = 20,960,972.64 × 8,219,838.48
  4. Step 4: Simplify right side
    15,189,165.96x = 172,295,809,484,499.19
  5. Step 5: Solve for x
    x = 172,295,809,484,499.19/15,189,165.96
  6. Step 6: Final answer
    x = 11,343,335.77

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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.