Home / 15,203,266,254.91-20,981,749,869.98-8,431,205,708.35

Finding the Fourth Proportional to 15,203,266,254.91, 20,981,749,869.98 and 8,431,205,708.35

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Solution

The fourth proportional to 15,203,266,254.91, 20,981,749,869.98 and 8,431,205,708.35 is: 11,635,752,890.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203,266,254.91 : 20,981,749,869.98 = 8,431,205,708.35 : x
  2. Step 2: Convert to fraction form
    15,203,266,254.91/20,981,749,869.98 = 8,431,205,708.35/x
  3. Step 3: Cross multiply
    15,203,266,254.91x = 20,981,749,869.98 × 8,431,205,708.35
  4. Step 4: Simplify right side
    15,203,266,254.91x = 176,901,449,274,947,239,936
  5. Step 5: Solve for x
    x = 176,901,449,274,947,239,936/15,203,266,254.91
  6. Step 6: Final answer
    x = 11,635,752,890.79

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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.