Home / 320,991,036.60-481,486,554.90-206,199,780.60

Finding the Fourth Proportional to 320,991,036.60, 481,486,554.90 and 206,199,780.60

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Solution

The fourth proportional to 320,991,036.60, 481,486,554.90 and 206,199,780.60 is: 309,299,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,991,036.60 : 481,486,554.90 = 206,199,780.60 : x
  2. Step 2: Convert to fraction form
    320,991,036.60/481,486,554.90 = 206,199,780.60/x
  3. Step 3: Cross multiply
    320,991,036.60x = 481,486,554.90 × 206,199,780.60
  4. Step 4: Simplify right side
    320,991,036.60x = 99,282,421,982,229,840
  5. Step 5: Solve for x
    x = 99,282,421,982,229,840/320,991,036.60
  6. Step 6: Final answer
    x = 309,299,670.90

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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.