Home / 448,055,999.40-672,083,999.10-400,438,885.80

Finding the Fourth Proportional to 448,055,999.40, 672,083,999.10 and 400,438,885.80

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Solution

The fourth proportional to 448,055,999.40, 672,083,999.10 and 400,438,885.80 is: 600,658,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,055,999.40 : 672,083,999.10 = 400,438,885.80 : x
  2. Step 2: Convert to fraction form
    448,055,999.40/672,083,999.10 = 400,438,885.80/x
  3. Step 3: Cross multiply
    448,055,999.40x = 672,083,999.10 × 400,438,885.80
  4. Step 4: Simplify right side
    448,055,999.40x = 269,128,567,763,612,224
  5. Step 5: Solve for x
    x = 269,128,567,763,612,224/448,055,999.40
  6. Step 6: Final answer
    x = 600,658,328.70

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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.