Home / 203,278,958.02-280,523,976.33-115,172,782.66

Finding the Fourth Proportional to 203,278,958.02, 280,523,976.33 and 115,172,782.66

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Solution

The fourth proportional to 203,278,958.02, 280,523,976.33 and 115,172,782.66 is: 158,937,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,278,958.02 : 280,523,976.33 = 115,172,782.66 : x
  2. Step 2: Convert to fraction form
    203,278,958.02/280,523,976.33 = 115,172,782.66/x
  3. Step 3: Cross multiply
    203,278,958.02x = 280,523,976.33 × 115,172,782.66
  4. Step 4: Simplify right side
    203,278,958.02x = 32,308,726,956,774,072
  5. Step 5: Solve for x
    x = 32,308,726,956,774,072/203,278,958.02
  6. Step 6: Final answer
    x = 158,937,881.58

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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.