Home / 38,142,123.54-52,635,759.35-20,738,468.72

Finding the Fourth Proportional to 38,142,123.54, 52,635,759.35 and 20,738,468.72

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Solution

The fourth proportional to 38,142,123.54, 52,635,759.35 and 20,738,468.72 is: 28,618,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142,123.54 : 52,635,759.35 = 20,738,468.72 : x
  2. Step 2: Convert to fraction form
    38,142,123.54/52,635,759.35 = 20,738,468.72/x
  3. Step 3: Cross multiply
    38,142,123.54x = 52,635,759.35 × 20,738,468.72
  4. Step 4: Simplify right side
    38,142,123.54x = 1,091,585,048,466,551.38
  5. Step 5: Solve for x
    x = 1,091,585,048,466,551.38/38,142,123.54
  6. Step 6: Final answer
    x = 28,618,885.03

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1.5x scale

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.