Home / 203,940,478.86-281,437,901.28-111,120,986.70

Finding the Fourth Proportional to 203,940,478.86, 281,437,901.28 and 111,120,986.70

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Solution

The fourth proportional to 203,940,478.86, 281,437,901.28 and 111,120,986.70 is: 153,346,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,940,478.86 : 281,437,901.28 = 111,120,986.70 : x
  2. Step 2: Convert to fraction form
    203,940,478.86/281,437,901.28 = 111,120,986.70/x
  3. Step 3: Cross multiply
    203,940,478.86x = 281,437,901.28 × 111,120,986.70
  4. Step 4: Simplify right side
    203,940,478.86x = 31,273,657,285,010,792
  5. Step 5: Solve for x
    x = 31,273,657,285,010,792/203,940,478.86
  6. Step 6: Final answer
    x = 153,346,983.69

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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.