Home / 200,201,675.70-300,302,513.55-85,189,970.10

Finding the Fourth Proportional to 200,201,675.70, 300,302,513.55 and 85,189,970.10

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Solution

The fourth proportional to 200,201,675.70, 300,302,513.55 and 85,189,970.10 is: 127,784,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,201,675.70 : 300,302,513.55 = 85,189,970.10 : x
  2. Step 2: Convert to fraction form
    200,201,675.70/300,302,513.55 = 85,189,970.10/x
  3. Step 3: Cross multiply
    200,201,675.70x = 300,302,513.55 × 85,189,970.10
  4. Step 4: Simplify right side
    200,201,675.70x = 25,582,762,150,279,344
  5. Step 5: Solve for x
    x = 25,582,762,150,279,344/200,201,675.70
  6. Step 6: Final answer
    x = 127,784,955.15

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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.