Home / 448,055,998.40-672,083,997.60-400,438,884.80

Finding the Fourth Proportional to 448,055,998.40, 672,083,997.60 and 400,438,884.80

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Solution

The fourth proportional to 448,055,998.40, 672,083,997.60 and 400,438,884.80 is: 600,658,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,055,998.40 : 672,083,997.60 = 400,438,884.80 : x
  2. Step 2: Convert to fraction form
    448,055,998.40/672,083,997.60 = 400,438,884.80/x
  3. Step 3: Cross multiply
    448,055,998.40x = 672,083,997.60 × 400,438,884.80
  4. Step 4: Simplify right side
    448,055,998.40x = 269,128,566,490,869,888
  5. Step 5: Solve for x
    x = 269,128,566,490,869,888/448,055,998.40
  6. Step 6: Final answer
    x = 600,658,327.20

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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.