Home / 886,463,999.60-1,329,695,999.40-426,165,234.80

Finding the Fourth Proportional to 886,463,999.60, 1,329,695,999.40 and 426,165,234.80

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Solution

The fourth proportional to 886,463,999.60, 1,329,695,999.40 and 426,165,234.80 is: 639,247,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,463,999.60 : 1,329,695,999.40 = 426,165,234.80 : x
  2. Step 2: Convert to fraction form
    886,463,999.60/1,329,695,999.40 = 426,165,234.80/x
  3. Step 3: Cross multiply
    886,463,999.60x = 1,329,695,999.40 × 426,165,234.80
  4. Step 4: Simplify right side
    886,463,999.60x = 566,670,207,796,921,728
  5. Step 5: Solve for x
    x = 566,670,207,796,921,728/886,463,999.60
  6. Step 6: Final answer
    x = 639,247,852.20

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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.