Home / 343,441,314.80-515,161,972.20-205,691,807.60

Finding the Fourth Proportional to 343,441,314.80, 515,161,972.20 and 205,691,807.60

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Solution

The fourth proportional to 343,441,314.80, 515,161,972.20 and 205,691,807.60 is: 308,537,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,441,314.80 : 515,161,972.20 = 205,691,807.60 : x
  2. Step 2: Convert to fraction form
    343,441,314.80/515,161,972.20 = 205,691,807.60/x
  3. Step 3: Cross multiply
    343,441,314.80x = 515,161,972.20 × 205,691,807.60
  4. Step 4: Simplify right side
    343,441,314.80x = 105,964,597,268,598,944
  5. Step 5: Solve for x
    x = 105,964,597,268,598,944/343,441,314.80
  6. Step 6: Final answer
    x = 308,537,711.40

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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.