Home / 81,093,683.76-111,881,238.60-61,494,154.80

Finding the Fourth Proportional to 81,093,683.76, 111,881,238.60 and 61,494,154.80

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Solution

The fourth proportional to 81,093,683.76, 111,881,238.60 and 61,494,154.80 is: 84,840,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093,683.76 : 111,881,238.60 = 61,494,154.80 : x
  2. Step 2: Convert to fraction form
    81,093,683.76/111,881,238.60 = 61,494,154.80/x
  3. Step 3: Cross multiply
    81,093,683.76x = 111,881,238.60 × 61,494,154.80
  4. Step 4: Simplify right side
    81,093,683.76x = 6,880,042,205,684,135
  5. Step 5: Solve for x
    x = 6,880,042,205,684,135/81,093,683.76
  6. Step 6: Final answer
    x = 84,840,666.83

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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.