Home / 21,289,246.76-29,379,171.75-11,499,690.71

Finding the Fourth Proportional to 21,289,246.76, 29,379,171.75 and 11,499,690.71

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Solution

The fourth proportional to 21,289,246.76, 29,379,171.75 and 11,499,690.71 is: 15,869,579.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,246.76 : 29,379,171.75 = 11,499,690.71 : x
  2. Step 2: Convert to fraction form
    21,289,246.76/29,379,171.75 = 11,499,690.71/x
  3. Step 3: Cross multiply
    21,289,246.76x = 29,379,171.75 × 11,499,690.71
  4. Step 4: Simplify right side
    21,289,246.76x = 337,851,388,440,969.50
  5. Step 5: Solve for x
    x = 337,851,388,440,969.50/21,289,246.76
  6. Step 6: Final answer
    x = 15,869,579.24

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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.