Home / 21,739,309.15-29,999,910.30-11,949,543.85

Finding the Fourth Proportional to 21,739,309.15, 29,999,910.30 and 11,949,543.85

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Solution

The fourth proportional to 21,739,309.15, 29,999,910.30 and 11,949,543.85 is: 16,490,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739,309.15 : 29,999,910.30 = 11,949,543.85 : x
  2. Step 2: Convert to fraction form
    21,739,309.15/29,999,910.30 = 11,949,543.85/x
  3. Step 3: Cross multiply
    21,739,309.15x = 29,999,910.30 × 11,949,543.85
  4. Step 4: Simplify right side
    21,739,309.15x = 358,485,243,625,916.62
  5. Step 5: Solve for x
    x = 358,485,243,625,916.62/21,739,309.15
  6. Step 6: Final answer
    x = 16,490,185.64

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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.