Home / 1,328,604,412.80-1,992,906,619.20-1,320,951,662.40

Finding the Fourth Proportional to 1,328,604,412.80, 1,992,906,619.20 and 1,320,951,662.40

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Solution

The fourth proportional to 1,328,604,412.80, 1,992,906,619.20 and 1,320,951,662.40 is: 1,981,427,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,604,412.80 : 1,992,906,619.20 = 1,320,951,662.40 : x
  2. Step 2: Convert to fraction form
    1,328,604,412.80/1,992,906,619.20 = 1,320,951,662.40/x
  3. Step 3: Cross multiply
    1,328,604,412.80x = 1,992,906,619.20 × 1,320,951,662.40
  4. Step 4: Simplify right side
    1,328,604,412.80x = 2,632,533,311,640,203,776
  5. Step 5: Solve for x
    x = 2,632,533,311,640,203,776/1,328,604,412.80
  6. Step 6: Final answer
    x = 1,981,427,493.60

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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.