Home / 201,451,021.40-302,176,532.10-140,229,018.20

Finding the Fourth Proportional to 201,451,021.40, 302,176,532.10 and 140,229,018.20

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Solution

The fourth proportional to 201,451,021.40, 302,176,532.10 and 140,229,018.20 is: 210,343,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,451,021.40 : 302,176,532.10 = 140,229,018.20 : x
  2. Step 2: Convert to fraction form
    201,451,021.40/302,176,532.10 = 140,229,018.20/x
  3. Step 3: Cross multiply
    201,451,021.40x = 302,176,532.10 × 140,229,018.20
  4. Step 4: Simplify right side
    201,451,021.40x = 42,373,918,419,463,784
  5. Step 5: Solve for x
    x = 42,373,918,419,463,784/201,451,021.40
  6. Step 6: Final answer
    x = 210,343,527.30

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Similar ratio
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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.