Home / 81,211,527.27-111,947,924.43-49,791,406.77

Finding the Fourth Proportional to 81,211,527.27, 111,947,924.43 and 49,791,406.77

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Solution

The fourth proportional to 81,211,527.27, 111,947,924.43 and 49,791,406.77 is: 68,636,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,211,527.27 : 111,947,924.43 = 49,791,406.77 : x
  2. Step 2: Convert to fraction form
    81,211,527.27/111,947,924.43 = 49,791,406.77/x
  3. Step 3: Cross multiply
    81,211,527.27x = 111,947,924.43 × 49,791,406.77
  4. Step 4: Simplify right side
    81,211,527.27x = 5,574,044,642,351,351
  5. Step 5: Solve for x
    x = 5,574,044,642,351,351/81,211,527.27
  6. Step 6: Final answer
    x = 68,636,126.30

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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.