Home / 21,851,128.26-30,154,552.40-12,061,569.84

Finding the Fourth Proportional to 21,851,128.26, 30,154,552.40 and 12,061,569.84

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Solution

The fourth proportional to 21,851,128.26, 30,154,552.40 and 12,061,569.84 is: 16,644,963.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,128.26 : 30,154,552.40 = 12,061,569.84 : x
  2. Step 2: Convert to fraction form
    21,851,128.26/30,154,552.40 = 12,061,569.84/x
  3. Step 3: Cross multiply
    21,851,128.26x = 30,154,552.40 × 12,061,569.84
  4. Step 4: Simplify right side
    21,851,128.26x = 363,711,239,706,231.75
  5. Step 5: Solve for x
    x = 363,711,239,706,231.75/21,851,128.26
  6. Step 6: Final answer
    x = 16,644,963.84

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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.