Home / 1,489,105,211.10-2,233,657,816.65-398,588,279.10

Finding the Fourth Proportional to 1,489,105,211.10, 2,233,657,816.65 and 398,588,279.10

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Solution

The fourth proportional to 1,489,105,211.10, 2,233,657,816.65 and 398,588,279.10 is: 597,882,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,105,211.10 : 2,233,657,816.65 = 398,588,279.10 : x
  2. Step 2: Convert to fraction form
    1,489,105,211.10/2,233,657,816.65 = 398,588,279.10/x
  3. Step 3: Cross multiply
    1,489,105,211.10x = 2,233,657,816.65 × 398,588,279.10
  4. Step 4: Simplify right side
    1,489,105,211.10x = 890,309,825,236,786,944
  5. Step 5: Solve for x
    x = 890,309,825,236,786,944/1,489,105,211.10
  6. Step 6: Final answer
    x = 597,882,418.65

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Double scale
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Similar ratio
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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.