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Finding the Fourth Proportional to 216,660,434.34, 298,991,978.91 and 117,541,181.73

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Solution

The fourth proportional to 216,660,434.34, 298,991,978.91 and 117,541,181.73 is: 162,207,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,660,434.34 : 298,991,978.91 = 117,541,181.73 : x
  2. Step 2: Convert to fraction form
    216,660,434.34/298,991,978.91 = 117,541,181.73/x
  3. Step 3: Cross multiply
    216,660,434.34x = 298,991,978.91 × 117,541,181.73
  4. Step 4: Simplify right side
    216,660,434.34x = 35,143,870,528,872,640
  5. Step 5: Solve for x
    x = 35,143,870,528,872,640/216,660,434.34
  6. Step 6: Final answer
    x = 162,207,145.19

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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.