Home / 253,885,606.20-380,828,409.30-81,486,145.80

Finding the Fourth Proportional to 253,885,606.20, 380,828,409.30 and 81,486,145.80

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Solution

The fourth proportional to 253,885,606.20, 380,828,409.30 and 81,486,145.80 is: 122,229,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,885,606.20 : 380,828,409.30 = 81,486,145.80 : x
  2. Step 2: Convert to fraction form
    253,885,606.20/380,828,409.30 = 81,486,145.80/x
  3. Step 3: Cross multiply
    253,885,606.20x = 380,828,409.30 × 81,486,145.80
  4. Step 4: Simplify right side
    253,885,606.20x = 31,032,239,285,001,876
  5. Step 5: Solve for x
    x = 31,032,239,285,001,876/253,885,606.20
  6. Step 6: Final answer
    x = 122,229,218.70

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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.