Home / 28,212,848.72-38,412,870.56-28,123,269.20

Finding the Fourth Proportional to 28,212,848.72, 38,412,870.56 and 28,123,269.20

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Solution

The fourth proportional to 28,212,848.72, 38,412,870.56 and 28,123,269.20 is: 38,290,904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,212,848.72 : 38,412,870.56 = 28,123,269.20 : x
  2. Step 2: Convert to fraction form
    28,212,848.72/38,412,870.56 = 28,123,269.20/x
  3. Step 3: Cross multiply
    28,212,848.72x = 38,412,870.56 × 28,123,269.20
  4. Step 4: Simplify right side
    28,212,848.72x = 1,080,295,499,503,634.75
  5. Step 5: Solve for x
    x = 1,080,295,499,503,634.75/28,212,848.72
  6. Step 6: Final answer
    x = 38,290,904.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.