Home / 1,185,412,710-1,635,869,539.84-663,891,942

Finding the Fourth Proportional to 1,185,412,710, 1,635,869,539.84 and 663,891,942

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Solution

The fourth proportional to 1,185,412,710, 1,635,869,539.84 and 663,891,942 is: 916,170,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,412,710 : 1,635,869,539.84 = 663,891,942 : x
  2. Step 2: Convert to fraction form
    1,185,412,710/1,635,869,539.84 = 663,891,942/x
  3. Step 3: Cross multiply
    1,185,412,710x = 1,635,869,539.84 × 663,891,942
  4. Step 4: Simplify right side
    1,185,412,710x = 1,086,040,605,663,023,872
  5. Step 5: Solve for x
    x = 1,086,040,605,663,023,872/1,185,412,710
  6. Step 6: Final answer
    x = 916,170,879.98

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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.