Home / 14,652,516.39-20,221,683.12-8,128,249.35

Finding the Fourth Proportional to 14,652,516.39, 20,221,683.12 and 8,128,249.35

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Solution

The fourth proportional to 14,652,516.39, 20,221,683.12 and 8,128,249.35 is: 11,217,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,516.39 : 20,221,683.12 = 8,128,249.35 : x
  2. Step 2: Convert to fraction form
    14,652,516.39/20,221,683.12 = 8,128,249.35/x
  3. Step 3: Cross multiply
    14,652,516.39x = 20,221,683.12 × 8,128,249.35
  4. Step 4: Simplify right side
    14,652,516.39x = 164,366,882,676,045.97
  5. Step 5: Solve for x
    x = 164,366,882,676,045.97/14,652,516.39
  6. Step 6: Final answer
    x = 11,217,655.61

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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.