Home / 711,966,991.20-1,068,269,351.40-323,589,908.40

Finding the Fourth Proportional to 711,966,991.20, 1,068,269,351.40 and 323,589,908.40

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Solution

The fourth proportional to 711,966,991.20, 1,068,269,351.40 and 323,589,908.40 is: 485,529,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,966,991.20 : 1,068,269,351.40 = 323,589,908.40 : x
  2. Step 2: Convert to fraction form
    711,966,991.20/1,068,269,351.40 = 323,589,908.40/x
  3. Step 3: Cross multiply
    711,966,991.20x = 1,068,269,351.40 × 323,589,908.40
  4. Step 4: Simplify right side
    711,966,991.20x = 345,681,181,566,053,376
  5. Step 5: Solve for x
    x = 345,681,181,566,053,376/711,966,991.20
  6. Step 6: Final answer
    x = 485,529,786.97

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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.