Home / 321,024,076.80-481,536,115.20-319,232,486.40

Finding the Fourth Proportional to 321,024,076.80, 481,536,115.20 and 319,232,486.40

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Solution

The fourth proportional to 321,024,076.80, 481,536,115.20 and 319,232,486.40 is: 478,848,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,024,076.80 : 481,536,115.20 = 319,232,486.40 : x
  2. Step 2: Convert to fraction form
    321,024,076.80/481,536,115.20 = 319,232,486.40/x
  3. Step 3: Cross multiply
    321,024,076.80x = 481,536,115.20 × 319,232,486.40
  4. Step 4: Simplify right side
    321,024,076.80x = 153,721,971,346,692,832
  5. Step 5: Solve for x
    x = 153,721,971,346,692,832/321,024,076.80
  6. Step 6: Final answer
    x = 478,848,729.60

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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.