Home / 413,972,857,009.80-620,959,285,514.70-343,307,359,816.20

Finding the Fourth Proportional to 413,972,857,009.80, 620,959,285,514.70 and 343,307,359,816.20

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Solution

The fourth proportional to 413,972,857,009.80, 620,959,285,514.70 and 343,307,359,816.20 is: 514,961,039,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,972,857,009.80 : 620,959,285,514.70 = 343,307,359,816.20 : x
  2. Step 2: Convert to fraction form
    413,972,857,009.80/620,959,285,514.70 = 343,307,359,816.20/x
  3. Step 3: Cross multiply
    413,972,857,009.80x = 620,959,285,514.70 × 343,307,359,816.20
  4. Step 4: Simplify right side
    413,972,857,009.80x = 213,179,892,863,405,570,129,920
  5. Step 5: Solve for x
    x = 213,179,892,863,405,570,129,920/413,972,857,009.80
  6. Step 6: Final answer
    x = 514,961,039,724.30

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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.