Home / 21,261,357.89-31,896,687.99-6,885,878.84

Finding the Fourth Proportional to 21,261,357.89, 31,896,687.99 and 6,885,878.84

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Solution

The fourth proportional to 21,261,357.89, 31,896,687.99 and 6,885,878.84 is: 10,330,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,357.89 : 31,896,687.99 = 6,885,878.84 : x
  2. Step 2: Convert to fraction form
    21,261,357.89/31,896,687.99 = 6,885,878.84/x
  3. Step 3: Cross multiply
    21,261,357.89x = 31,896,687.99 × 6,885,878.84
  4. Step 4: Simplify right side
    21,261,357.89x = 219,636,728,736,939.69
  5. Step 5: Solve for x
    x = 219,636,728,736,939.69/21,261,357.89
  6. Step 6: Final answer
    x = 10,330,324.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.