Home / 20,900,148.53-28,843,627.97-11,608,781.09

Finding the Fourth Proportional to 20,900,148.53, 28,843,627.97 and 11,608,781.09

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Solution

The fourth proportional to 20,900,148.53, 28,843,627.97 and 11,608,781.09 is: 16,020,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900,148.53 : 28,843,627.97 = 11,608,781.09 : x
  2. Step 2: Convert to fraction form
    20,900,148.53/28,843,627.97 = 11,608,781.09/x
  3. Step 3: Cross multiply
    20,900,148.53x = 28,843,627.97 × 11,608,781.09
  4. Step 4: Simplify right side
    20,900,148.53x = 334,839,362,829,934.94
  5. Step 5: Solve for x
    x = 334,839,362,829,934.94/20,900,148.53
  6. Step 6: Final answer
    x = 16,020,908.29

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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.