Home / 255,987,439.97-353,201,231.43-155,513,867.90

Finding the Fourth Proportional to 255,987,439.97, 353,201,231.43 and 155,513,867.90

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Solution

The fourth proportional to 255,987,439.97, 353,201,231.43 and 155,513,867.90 is: 214,571,815.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,987,439.97 : 353,201,231.43 = 155,513,867.90 : x
  2. Step 2: Convert to fraction form
    255,987,439.97/353,201,231.43 = 155,513,867.90/x
  3. Step 3: Cross multiply
    255,987,439.97x = 353,201,231.43 × 155,513,867.90
  4. Step 4: Simplify right side
    255,987,439.97x = 54,927,689,644,956,344
  5. Step 5: Solve for x
    x = 54,927,689,644,956,344/255,987,439.97
  6. Step 6: Final answer
    x = 214,571,815.13

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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.