Home / 81,008,509.79-111,792,084.20-43,838,791.81

Finding the Fourth Proportional to 81,008,509.79, 111,792,084.20 and 43,838,791.81

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Solution

The fourth proportional to 81,008,509.79, 111,792,084.20 and 43,838,791.81 is: 60,497,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,008,509.79 : 111,792,084.20 = 43,838,791.81 : x
  2. Step 2: Convert to fraction form
    81,008,509.79/111,792,084.20 = 43,838,791.81/x
  3. Step 3: Cross multiply
    81,008,509.79x = 111,792,084.20 × 43,838,791.81
  4. Step 4: Simplify right side
    81,008,509.79x = 4,900,829,904,751,116
  5. Step 5: Solve for x
    x = 4,900,829,904,751,116/81,008,509.79
  6. Step 6: Final answer
    x = 60,497,717.06

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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.