Home / 200,201,636.70-300,302,455.05-85,189,931.10

Finding the Fourth Proportional to 200,201,636.70, 300,302,455.05 and 85,189,931.10

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Solution

The fourth proportional to 200,201,636.70, 300,302,455.05 and 85,189,931.10 is: 127,784,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,201,636.70 : 300,302,455.05 = 85,189,931.10 : x
  2. Step 2: Convert to fraction form
    200,201,636.70/300,302,455.05 = 85,189,931.10/x
  3. Step 3: Cross multiply
    200,201,636.70x = 300,302,455.05 × 85,189,931.10
  4. Step 4: Simplify right side
    200,201,636.70x = 25,582,745,454,870,348
  5. Step 5: Solve for x
    x = 25,582,745,454,870,348/200,201,636.70
  6. Step 6: Final answer
    x = 127,784,896.65

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1.5x scale

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.