Home / 1,620,239,764.50-2,236,290,575.54-985,025,281.49

Finding the Fourth Proportional to 1,620,239,764.50, 2,236,290,575.54 and 985,025,281.49

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Solution

The fourth proportional to 1,620,239,764.50, 2,236,290,575.54 and 985,025,281.49 is: 1,359,553,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,239,764.50 : 2,236,290,575.54 = 985,025,281.49 : x
  2. Step 2: Convert to fraction form
    1,620,239,764.50/2,236,290,575.54 = 985,025,281.49/x
  3. Step 3: Cross multiply
    1,620,239,764.50x = 2,236,290,575.54 × 985,025,281.49
  4. Step 4: Simplify right side
    1,620,239,764.50x = 2,202,802,753,664,722,688
  5. Step 5: Solve for x
    x = 2,202,802,753,664,722,688/1,620,239,764.50
  6. Step 6: Final answer
    x = 1,359,553,568.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.