Home / 203,940,470.67-281,437,890.02-111,120,978.51

Finding the Fourth Proportional to 203,940,470.67, 281,437,890.02 and 111,120,978.51

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Solution

The fourth proportional to 203,940,470.67, 281,437,890.02 and 111,120,978.51 is: 153,346,972.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,940,470.67 : 281,437,890.02 = 111,120,978.51 : x
  2. Step 2: Convert to fraction form
    203,940,470.67/281,437,890.02 = 111,120,978.51/x
  3. Step 3: Cross multiply
    203,940,470.67x = 281,437,890.02 × 111,120,978.51
  4. Step 4: Simplify right side
    203,940,470.67x = 31,273,653,728,812,164
  5. Step 5: Solve for x
    x = 31,273,653,728,812,164/203,940,470.67
  6. Step 6: Final answer
    x = 153,346,972.41

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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.