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Finding the Fourth Proportional to 30,285,872.40, 45,428,808.60 and 27,262,563.60

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Solution

The fourth proportional to 30,285,872.40, 45,428,808.60 and 27,262,563.60 is: 40,893,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285,872.40 : 45,428,808.60 = 27,262,563.60 : x
  2. Step 2: Convert to fraction form
    30,285,872.40/45,428,808.60 = 27,262,563.60/x
  3. Step 3: Cross multiply
    30,285,872.40x = 45,428,808.60 × 27,262,563.60
  4. Step 4: Simplify right side
    30,285,872.40x = 1,238,505,783,729,727
  5. Step 5: Solve for x
    x = 1,238,505,783,729,727/30,285,872.40
  6. Step 6: Final answer
    x = 40,893,845.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.