Home / 21,699,696.80-29,945,541.80-12,407,441.33

Finding the Fourth Proportional to 21,699,696.80, 29,945,541.80 and 12,407,441.33

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Solution

The fourth proportional to 21,699,696.80, 29,945,541.80 and 12,407,441.33 is: 17,122,246.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,699,696.80 : 29,945,541.80 = 12,407,441.33 : x
  2. Step 2: Convert to fraction form
    21,699,696.80/29,945,541.80 = 12,407,441.33/x
  3. Step 3: Cross multiply
    21,699,696.80x = 29,945,541.80 × 12,407,441.33
  4. Step 4: Simplify right side
    21,699,696.80x = 371,547,552,766,797.69
  5. Step 5: Solve for x
    x = 371,547,552,766,797.69/21,699,696.80
  6. Step 6: Final answer
    x = 17,122,246.28

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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.