Home / 727,477,321.20-1,091,584,564.20-318,537,481.20

Finding the Fourth Proportional to 727,477,321.20, 1,091,584,564.20 and 318,537,481.20

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Solution

The fourth proportional to 727,477,321.20, 1,091,584,564.20 and 318,537,481.20 is: 477,967,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,477,321.20 : 1,091,584,564.20 = 318,537,481.20 : x
  2. Step 2: Convert to fraction form
    727,477,321.20/1,091,584,564.20 = 318,537,481.20/x
  3. Step 3: Cross multiply
    727,477,321.20x = 1,091,584,564.20 × 318,537,481.20
  4. Step 4: Simplify right side
    727,477,321.20x = 347,710,597,597,067,712
  5. Step 5: Solve for x
    x = 347,710,597,597,067,712/727,477,321.20
  6. Step 6: Final answer
    x = 477,967,611.45

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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.