Home / 1,185,412,590-1,635,869,374.20-663,891,822

Finding the Fourth Proportional to 1,185,412,590, 1,635,869,374.20 and 663,891,822

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Solution

The fourth proportional to 1,185,412,590, 1,635,869,374.20 and 663,891,822 is: 916,170,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,412,590 : 1,635,869,374.20 = 663,891,822 : x
  2. Step 2: Convert to fraction form
    1,185,412,590/1,635,869,374.20 = 663,891,822/x
  3. Step 3: Cross multiply
    1,185,412,590x = 1,635,869,374.20 × 663,891,822
  4. Step 4: Simplify right side
    1,185,412,590x = 1,086,040,299,391,637,888
  5. Step 5: Solve for x
    x = 1,086,040,299,391,637,888/1,185,412,590
  6. Step 6: Final answer
    x = 916,170,714.36

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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.