Home / 15,385,975.73-21,218,256.82-12,256,643.05

Finding the Fourth Proportional to 15,385,975.73, 21,218,256.82 and 12,256,643.05

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Solution

The fourth proportional to 15,385,975.73, 21,218,256.82 and 12,256,643.05 is: 16,902,704.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385,975.73 : 21,218,256.82 = 12,256,643.05 : x
  2. Step 2: Convert to fraction form
    15,385,975.73/21,218,256.82 = 12,256,643.05/x
  3. Step 3: Cross multiply
    15,385,975.73x = 21,218,256.82 × 12,256,643.05
  4. Step 4: Simplify right side
    15,385,975.73x = 260,064,599,948,243.25
  5. Step 5: Solve for x
    x = 260,064,599,948,243.25/15,385,975.73
  6. Step 6: Final answer
    x = 16,902,704.41

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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.