Home / 283,508,540.12-391,242,049-153,128,348.12

Finding the Fourth Proportional to 283,508,540.12, 391,242,049 and 153,128,348.12

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Solution

The fourth proportional to 283,508,540.12, 391,242,049 and 153,128,348.12 is: 211,317,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,508,540.12 : 391,242,049 = 153,128,348.12 : x
  2. Step 2: Convert to fraction form
    283,508,540.12/391,242,049 = 153,128,348.12/x
  3. Step 3: Cross multiply
    283,508,540.12x = 391,242,049 × 153,128,348.12
  4. Step 4: Simplify right side
    283,508,540.12x = 59,910,248,678,454,096
  5. Step 5: Solve for x
    x = 59,910,248,678,454,096/283,508,540.12
  6. Step 6: Final answer
    x = 211,317,262.80

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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.