Home / 1,489,228,890.02-2,055,110,795.28-820,236,233.42

Finding the Fourth Proportional to 1,489,228,890.02, 2,055,110,795.28 and 820,236,233.42

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Solution

The fourth proportional to 1,489,228,890.02, 2,055,110,795.28 and 820,236,233.42 is: 1,131,912,192.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,228,890.02 : 2,055,110,795.28 = 820,236,233.42 : x
  2. Step 2: Convert to fraction form
    1,489,228,890.02/2,055,110,795.28 = 820,236,233.42/x
  3. Step 3: Cross multiply
    1,489,228,890.02x = 2,055,110,795.28 × 820,236,233.42
  4. Step 4: Simplify right side
    1,489,228,890.02x = 1,685,676,337,981,247,744
  5. Step 5: Solve for x
    x = 1,685,676,337,981,247,744/1,489,228,890.02
  6. Step 6: Final answer
    x = 1,131,912,192.46

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Double scale
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1.5x scale

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.