Home / 298,383,027.49-408,786,206.29-287,199,701.54

Finding the Fourth Proportional to 298,383,027.49, 408,786,206.29 and 287,199,701.54

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Solution

The fourth proportional to 298,383,027.49, 408,786,206.29 and 287,199,701.54 is: 393,464,995.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,383,027.49 : 408,786,206.29 = 287,199,701.54 : x
  2. Step 2: Convert to fraction form
    298,383,027.49/408,786,206.29 = 287,199,701.54/x
  3. Step 3: Cross multiply
    298,383,027.49x = 408,786,206.29 × 287,199,701.54
  4. Step 4: Simplify right side
    298,383,027.49x = 117,403,276,438,927,888
  5. Step 5: Solve for x
    x = 117,403,276,438,927,888/298,383,027.49
  6. Step 6: Final answer
    x = 393,464,995.06

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.