Home / 255,983,860.69-353,127,585.21-155,485,554.55

Finding the Fourth Proportional to 255,983,860.69, 353,127,585.21 and 155,485,554.55

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Solution

The fourth proportional to 255,983,860.69, 353,127,585.21 and 155,485,554.55 is: 214,491,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,983,860.69 : 353,127,585.21 = 155,485,554.55 : x
  2. Step 2: Convert to fraction form
    255,983,860.69/353,127,585.21 = 155,485,554.55/x
  3. Step 3: Cross multiply
    255,983,860.69x = 353,127,585.21 × 155,485,554.55
  4. Step 4: Simplify right side
    255,983,860.69x = 54,906,238,413,279,232
  5. Step 5: Solve for x
    x = 54,906,238,413,279,232/255,983,860.69
  6. Step 6: Final answer
    x = 214,491,016.21

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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.