Home / 320,827,014.55-481,240,521.83-78,489,918.55

Finding the Fourth Proportional to 320,827,014.55, 481,240,521.83 and 78,489,918.55

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Solution

The fourth proportional to 320,827,014.55, 481,240,521.83 and 78,489,918.55 is: 117,734,877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,827,014.55 : 481,240,521.83 = 78,489,918.55 : x
  2. Step 2: Convert to fraction form
    320,827,014.55/481,240,521.83 = 78,489,918.55/x
  3. Step 3: Cross multiply
    320,827,014.55x = 481,240,521.83 × 78,489,918.55
  4. Step 4: Simplify right side
    320,827,014.55x = 37,772,529,361,003,744
  5. Step 5: Solve for x
    x = 37,772,529,361,003,744/320,827,014.55
  6. Step 6: Final answer
    x = 117,734,877.83

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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.