Home / 1,091,628,755.20-1,636,327,106.70-538,079,809.60

Finding the Fourth Proportional to 1,091,628,755.20, 1,636,327,106.70 and 538,079,809.60

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Solution

The fourth proportional to 1,091,628,755.20, 1,636,327,106.70 and 538,079,809.60 is: 806,569,608.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,628,755.20 : 1,636,327,106.70 = 538,079,809.60 : x
  2. Step 2: Convert to fraction form
    1,091,628,755.20/1,636,327,106.70 = 538,079,809.60/x
  3. Step 3: Cross multiply
    1,091,628,755.20x = 1,636,327,106.70 × 538,079,809.60
  4. Step 4: Simplify right side
    1,091,628,755.20x = 880,474,578,016,454,912
  5. Step 5: Solve for x
    x = 880,474,578,016,454,912/1,091,628,755.20
  6. Step 6: Final answer
    x = 806,569,608.78

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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.