Home / 200,201,638.20-300,302,457.30-85,189,932.60

Finding the Fourth Proportional to 200,201,638.20, 300,302,457.30 and 85,189,932.60

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Solution

The fourth proportional to 200,201,638.20, 300,302,457.30 and 85,189,932.60 is: 127,784,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,201,638.20 : 300,302,457.30 = 85,189,932.60 : x
  2. Step 2: Convert to fraction form
    200,201,638.20/300,302,457.30 = 85,189,932.60/x
  3. Step 3: Cross multiply
    200,201,638.20x = 300,302,457.30 × 85,189,932.60
  4. Step 4: Simplify right side
    200,201,638.20x = 25,582,746,097,001,376
  5. Step 5: Solve for x
    x = 25,582,746,097,001,376/200,201,638.20
  6. Step 6: Final answer
    x = 127,784,898.90

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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.