Home / 316,728,007.20-475,092,010.80-161,759,811.60

Finding the Fourth Proportional to 316,728,007.20, 475,092,010.80 and 161,759,811.60

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Solution

The fourth proportional to 316,728,007.20, 475,092,010.80 and 161,759,811.60 is: 242,639,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,728,007.20 : 475,092,010.80 = 161,759,811.60 : x
  2. Step 2: Convert to fraction form
    316,728,007.20/475,092,010.80 = 161,759,811.60/x
  3. Step 3: Cross multiply
    316,728,007.20x = 475,092,010.80 × 161,759,811.60
  4. Step 4: Simplify right side
    316,728,007.20x = 76,850,794,159,673,168
  5. Step 5: Solve for x
    x = 76,850,794,159,673,168/316,728,007.20
  6. Step 6: Final answer
    x = 242,639,717.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.