Home / 217,884,867.57-300,511,019.39-139,575,702.15

Finding the Fourth Proportional to 217,884,867.57, 300,511,019.39 and 139,575,702.15

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Solution

The fourth proportional to 217,884,867.57, 300,511,019.39 and 139,575,702.15 is: 192,505,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,884,867.57 : 300,511,019.39 = 139,575,702.15 : x
  2. Step 2: Convert to fraction form
    217,884,867.57/300,511,019.39 = 139,575,702.15/x
  3. Step 3: Cross multiply
    217,884,867.57x = 300,511,019.39 × 139,575,702.15
  4. Step 4: Simplify right side
    217,884,867.57x = 41,944,036,534,473,640
  5. Step 5: Solve for x
    x = 41,944,036,534,473,640/217,884,867.57
  6. Step 6: Final answer
    x = 192,505,505.33

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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.