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Finding the Fourth Proportional to 201,703,490.80, 302,555,236.20 and 200,191,836.40

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Solution

The fourth proportional to 201,703,490.80, 302,555,236.20 and 200,191,836.40 is: 300,287,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,703,490.80 : 302,555,236.20 = 200,191,836.40 : x
  2. Step 2: Convert to fraction form
    201,703,490.80/302,555,236.20 = 200,191,836.40/x
  3. Step 3: Cross multiply
    201,703,490.80x = 302,555,236.20 × 200,191,836.40
  4. Step 4: Simplify right side
    201,703,490.80x = 60,569,088,347,313,760
  5. Step 5: Solve for x
    x = 60,569,088,347,313,760/201,703,490.80
  6. Step 6: Final answer
    x = 300,287,754.60

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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.