Home / 20,718,659.39-31,072,686.21-6,142,170.24

Finding the Fourth Proportional to 20,718,659.39, 31,072,686.21 and 6,142,170.24

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Solution

The fourth proportional to 20,718,659.39, 31,072,686.21 and 6,142,170.24 is: 9,211,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,659.39 : 31,072,686.21 = 6,142,170.24 : x
  2. Step 2: Convert to fraction form
    20,718,659.39/31,072,686.21 = 6,142,170.24/x
  3. Step 3: Cross multiply
    20,718,659.39x = 31,072,686.21 × 6,142,170.24
  4. Step 4: Simplify right side
    20,718,659.39x = 190,853,728,515,920.41
  5. Step 5: Solve for x
    x = 190,853,728,515,920.41/20,718,659.39
  6. Step 6: Final answer
    x = 9,211,683.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.