Home / 81,007,993.83-111,791,313.76-43,838,264.79

Finding the Fourth Proportional to 81,007,993.83, 111,791,313.76 and 43,838,264.79

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Solution

The fourth proportional to 81,007,993.83, 111,791,313.76 and 43,838,264.79 is: 60,496,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,007,993.83 : 111,791,313.76 = 43,838,264.79 : x
  2. Step 2: Convert to fraction form
    81,007,993.83/111,791,313.76 = 43,838,264.79/x
  3. Step 3: Cross multiply
    81,007,993.83x = 111,791,313.76 × 43,838,264.79
  4. Step 4: Simplify right side
    81,007,993.83x = 4,900,737,213,887,648
  5. Step 5: Solve for x
    x = 4,900,737,213,887,648/81,007,993.83
  6. Step 6: Final answer
    x = 60,496,958.16

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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.