Home / 1,385,320,738.22-1,911,932,822.09-849,377,623.76

Finding the Fourth Proportional to 1,385,320,738.22, 1,911,932,822.09 and 849,377,623.76

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Solution

The fourth proportional to 1,385,320,738.22, 1,911,932,822.09 and 849,377,623.76 is: 1,172,257,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,320,738.22 : 1,911,932,822.09 = 849,377,623.76 : x
  2. Step 2: Convert to fraction form
    1,385,320,738.22/1,911,932,822.09 = 849,377,623.76/x
  3. Step 3: Cross multiply
    1,385,320,738.22x = 1,911,932,822.09 × 849,377,623.76
  4. Step 4: Simplify right side
    1,385,320,738.22x = 1,623,952,957,215,555,072
  5. Step 5: Solve for x
    x = 1,623,952,957,215,555,072/1,385,320,738.22
  6. Step 6: Final answer
    x = 1,172,257,739.61

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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.