Home / 66,305,289.92-91,506,136.20-38,435,195.28

Finding the Fourth Proportional to 66,305,289.92, 91,506,136.20 and 38,435,195.28

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Solution

The fourth proportional to 66,305,289.92, 91,506,136.20 and 38,435,195.28 is: 53,043,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305,289.92 : 91,506,136.20 = 38,435,195.28 : x
  2. Step 2: Convert to fraction form
    66,305,289.92/91,506,136.20 = 38,435,195.28/x
  3. Step 3: Cross multiply
    66,305,289.92x = 91,506,136.20 × 38,435,195.28
  4. Step 4: Simplify right side
    66,305,289.92x = 3,517,056,214,065,769.50
  5. Step 5: Solve for x
    x = 3,517,056,214,065,769.50/66,305,289.92
  6. Step 6: Final answer
    x = 53,043,372.83

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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.