Home / 1,964,658,964.16-2,945,535,612.88-1,188,131,989.60

Finding the Fourth Proportional to 1,964,658,964.16, 2,945,535,612.88 and 1,188,131,989.60

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Solution

The fourth proportional to 1,964,658,964.16, 2,945,535,612.88 and 1,188,131,989.60 is: 1,781,319,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964,658,964.16 : 2,945,535,612.88 = 1,188,131,989.60 : x
  2. Step 2: Convert to fraction form
    1,964,658,964.16/2,945,535,612.88 = 1,188,131,989.60/x
  3. Step 3: Cross multiply
    1,964,658,964.16x = 2,945,535,612.88 × 1,188,131,989.60
  4. Step 4: Simplify right side
    1,964,658,964.16x = 3,499,685,088,168,769,536
  5. Step 5: Solve for x
    x = 3,499,685,088,168,769,536/1,964,658,964.16
  6. Step 6: Final answer
    x = 1,781,319,380.11

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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.