Home / 21,321,272-29,424,057.36-11,663,480

Finding the Fourth Proportional to 21,321,272, 29,424,057.36 and 11,663,480

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Solution

The fourth proportional to 21,321,272, 29,424,057.36 and 11,663,480 is: 16,095,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,321,272 : 29,424,057.36 = 11,663,480 : x
  2. Step 2: Convert to fraction form
    21,321,272/29,424,057.36 = 11,663,480/x
  3. Step 3: Cross multiply
    21,321,272x = 29,424,057.36 × 11,663,480
  4. Step 4: Simplify right side
    21,321,272x = 343,186,904,537,212.81
  5. Step 5: Solve for x
    x = 343,186,904,537,212.81/21,321,272
  6. Step 6: Final answer
    x = 16,095,986.42

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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.