Home / 81,211,464.77-111,947,838.39-49,791,344.27

Finding the Fourth Proportional to 81,211,464.77, 111,947,838.39 and 49,791,344.27

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Solution

The fourth proportional to 81,211,464.77, 111,947,838.39 and 49,791,344.27 is: 68,636,040.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,211,464.77 : 111,947,838.39 = 49,791,344.27 : x
  2. Step 2: Convert to fraction form
    81,211,464.77/111,947,838.39 = 49,791,344.27/x
  3. Step 3: Cross multiply
    81,211,464.77x = 111,947,838.39 × 49,791,344.27
  4. Step 4: Simplify right side
    81,211,464.77x = 5,574,033,360,999,073
  5. Step 5: Solve for x
    x = 5,574,033,360,999,073/81,211,464.77
  6. Step 6: Final answer
    x = 68,636,040.21

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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.