Home / 202,128,656.40-303,192,984.60-200,428,045.20

Finding the Fourth Proportional to 202,128,656.40, 303,192,984.60 and 200,428,045.20

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Solution

The fourth proportional to 202,128,656.40, 303,192,984.60 and 200,428,045.20 is: 300,642,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,128,656.40 : 303,192,984.60 = 200,428,045.20 : x
  2. Step 2: Convert to fraction form
    202,128,656.40/303,192,984.60 = 200,428,045.20/x
  3. Step 3: Cross multiply
    202,128,656.40x = 303,192,984.60 × 200,428,045.20
  4. Step 4: Simplify right side
    202,128,656.40x = 60,768,377,221,731,704
  5. Step 5: Solve for x
    x = 60,768,377,221,731,704/202,128,656.40
  6. Step 6: Final answer
    x = 300,642,067.80

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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.