Home / 21,709,724.92-29,959,848.87-11,920,083.46

Finding the Fourth Proportional to 21,709,724.92, 29,959,848.87 and 11,920,083.46

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Solution

The fourth proportional to 21,709,724.92, 29,959,848.87 and 11,920,083.46 is: 16,449,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709,724.92 : 29,959,848.87 = 11,920,083.46 : x
  2. Step 2: Convert to fraction form
    21,709,724.92/29,959,848.87 = 11,920,083.46/x
  3. Step 3: Cross multiply
    21,709,724.92x = 29,959,848.87 × 11,920,083.46
  4. Step 4: Simplify right side
    21,709,724.92x = 357,123,898,979,386.75
  5. Step 5: Solve for x
    x = 357,123,898,979,386.75/21,709,724.92
  6. Step 6: Final answer
    x = 16,449,950.44

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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.