Home / 1,580,550,381-2,181,159,525.78-885,189,357

Finding the Fourth Proportional to 1,580,550,381, 2,181,159,525.78 and 885,189,357

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Solution

The fourth proportional to 1,580,550,381, 2,181,159,525.78 and 885,189,357 is: 1,221,561,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,550,381 : 2,181,159,525.78 = 885,189,357 : x
  2. Step 2: Convert to fraction form
    1,580,550,381/2,181,159,525.78 = 885,189,357/x
  3. Step 3: Cross multiply
    1,580,550,381x = 2,181,159,525.78 × 885,189,357
  4. Step 4: Simplify right side
    1,580,550,381x = 1,930,739,198,139,623,424
  5. Step 5: Solve for x
    x = 1,930,739,198,139,623,424/1,580,550,381
  6. Step 6: Final answer
    x = 1,221,561,312.66

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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.