Home / 21,160,309.77-29,201,547.42-11,869,939.23

Finding the Fourth Proportional to 21,160,309.77, 29,201,547.42 and 11,869,939.23

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Solution

The fourth proportional to 21,160,309.77, 29,201,547.42 and 11,869,939.23 is: 16,380,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,309.77 : 29,201,547.42 = 11,869,939.23 : x
  2. Step 2: Convert to fraction form
    21,160,309.77/29,201,547.42 = 11,869,939.23/x
  3. Step 3: Cross multiply
    21,160,309.77x = 29,201,547.42 × 11,869,939.23
  4. Step 4: Simplify right side
    21,160,309.77x = 346,620,593,297,363.31
  5. Step 5: Solve for x
    x = 346,620,593,297,363.31/21,160,309.77
  6. Step 6: Final answer
    x = 16,380,695.61

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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.