Home / 154,340,110.48-212,981,540.88-91,618,893.40

Finding the Fourth Proportional to 154,340,110.48, 212,981,540.88 and 91,618,893.40

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Solution

The fourth proportional to 154,340,110.48, 212,981,540.88 and 91,618,893.40 is: 126,429,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,340,110.48 : 212,981,540.88 = 91,618,893.40 : x
  2. Step 2: Convert to fraction form
    154,340,110.48/212,981,540.88 = 91,618,893.40/x
  3. Step 3: Cross multiply
    154,340,110.48x = 212,981,540.88 × 91,618,893.40
  4. Step 4: Simplify right side
    154,340,110.48x = 19,513,133,090,052,464
  5. Step 5: Solve for x
    x = 19,513,133,090,052,464/154,340,110.48
  6. Step 6: Final answer
    x = 126,429,435.80

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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.