Home / 213,556,309.60-320,334,464.40-77,262,728.80

Finding the Fourth Proportional to 213,556,309.60, 320,334,464.40 and 77,262,728.80

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Solution

The fourth proportional to 213,556,309.60, 320,334,464.40 and 77,262,728.80 is: 115,894,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,556,309.60 : 320,334,464.40 = 77,262,728.80 : x
  2. Step 2: Convert to fraction form
    213,556,309.60/320,334,464.40 = 77,262,728.80/x
  3. Step 3: Cross multiply
    213,556,309.60x = 320,334,464.40 × 77,262,728.80
  4. Step 4: Simplify right side
    213,556,309.60x = 24,749,914,848,230,452
  5. Step 5: Solve for x
    x = 24,749,914,848,230,452/213,556,309.60
  6. Step 6: Final answer
    x = 115,894,093.20

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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.