Home / 21,514,215.85-29,688,751.72-11,724,449.84

Finding the Fourth Proportional to 21,514,215.85, 29,688,751.72 and 11,724,449.84

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Solution

The fourth proportional to 21,514,215.85, 29,688,751.72 and 11,724,449.84 is: 16,179,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514,215.85 : 29,688,751.72 = 11,724,449.84 : x
  2. Step 2: Convert to fraction form
    21,514,215.85/29,688,751.72 = 11,724,449.84/x
  3. Step 3: Cross multiply
    21,514,215.85x = 29,688,751.72 × 11,724,449.84
  4. Step 4: Simplify right side
    21,514,215.85x = 348,084,280,530,866.69
  5. Step 5: Solve for x
    x = 348,084,280,530,866.69/21,514,215.85
  6. Step 6: Final answer
    x = 16,179,268.76

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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.