Home / 15,687,565.36-21,642,124.82-9,796,972.97

Finding the Fourth Proportional to 15,687,565.36, 21,642,124.82 and 9,796,972.97

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Solution

The fourth proportional to 15,687,565.36, 21,642,124.82 and 9,796,972.97 is: 13,515,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687,565.36 : 21,642,124.82 = 9,796,972.97 : x
  2. Step 2: Convert to fraction form
    15,687,565.36/21,642,124.82 = 9,796,972.97/x
  3. Step 3: Cross multiply
    15,687,565.36x = 21,642,124.82 × 9,796,972.97
  4. Step 4: Simplify right side
    15,687,565.36x = 212,027,311,912,924.91
  5. Step 5: Solve for x
    x = 212,027,311,912,924.91/15,687,565.36
  6. Step 6: Final answer
    x = 13,515,628.91

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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.