Home / 409,001,109.20-613,501,663.80-317,629,998.80

Finding the Fourth Proportional to 409,001,109.20, 613,501,663.80 and 317,629,998.80

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Solution

The fourth proportional to 409,001,109.20, 613,501,663.80 and 317,629,998.80 is: 476,444,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,001,109.20 : 613,501,663.80 = 317,629,998.80 : x
  2. Step 2: Convert to fraction form
    409,001,109.20/613,501,663.80 = 317,629,998.80/x
  3. Step 3: Cross multiply
    409,001,109.20x = 613,501,663.80 × 317,629,998.80
  4. Step 4: Simplify right side
    409,001,109.20x = 194,866,532,736,592,000
  5. Step 5: Solve for x
    x = 194,866,532,736,592,000/409,001,109.20
  6. Step 6: Final answer
    x = 476,444,998.20

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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.