Home / 38,142,120.53-52,635,755.21-20,738,465.71

Finding the Fourth Proportional to 38,142,120.53, 52,635,755.21 and 20,738,465.71

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Solution

The fourth proportional to 38,142,120.53, 52,635,755.21 and 20,738,465.71 is: 28,618,880.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142,120.53 : 52,635,755.21 = 20,738,465.71 : x
  2. Step 2: Convert to fraction form
    38,142,120.53/52,635,755.21 = 20,738,465.71/x
  3. Step 3: Cross multiply
    38,142,120.53x = 52,635,755.21 × 20,738,465.71
  4. Step 4: Simplify right side
    38,142,120.53x = 1,091,584,804,307,257.12
  5. Step 5: Solve for x
    x = 1,091,584,804,307,257.12/38,142,120.53
  6. Step 6: Final answer
    x = 28,618,880.89

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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.