Home / 13,564,384.47-18,714,221.01-8,405,863.83

Finding the Fourth Proportional to 13,564,384.47, 18,714,221.01 and 8,405,863.83

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Solution

The fourth proportional to 13,564,384.47, 18,714,221.01 and 8,405,863.83 is: 11,597,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564,384.47 : 18,714,221.01 = 8,405,863.83 : x
  2. Step 2: Convert to fraction form
    13,564,384.47/18,714,221.01 = 8,405,863.83/x
  3. Step 3: Cross multiply
    13,564,384.47x = 18,714,221.01 × 8,405,863.83
  4. Step 4: Simplify right side
    13,564,384.47x = 157,309,193,494,585.09
  5. Step 5: Solve for x
    x = 157,309,193,494,585.09/13,564,384.47
  6. Step 6: Final answer
    x = 11,597,223.14

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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.