Home / 85,824,370.20-128,736,555.30-53,512,757.40

Finding the Fourth Proportional to 85,824,370.20, 128,736,555.30 and 53,512,757.40

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Solution

The fourth proportional to 85,824,370.20, 128,736,555.30 and 53,512,757.40 is: 80,269,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,370.20 : 128,736,555.30 = 53,512,757.40 : x
  2. Step 2: Convert to fraction form
    85,824,370.20/128,736,555.30 = 53,512,757.40/x
  3. Step 3: Cross multiply
    85,824,370.20x = 128,736,555.30 × 53,512,757.40
  4. Step 4: Simplify right side
    85,824,370.20x = 6,889,048,052,280,584
  5. Step 5: Solve for x
    x = 6,889,048,052,280,584/85,824,370.20
  6. Step 6: Final answer
    x = 80,269,136.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.