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Finding the Fourth Proportional to 28,269,093.60, 42,403,640.40 and 10,093,811.40

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Solution

The fourth proportional to 28,269,093.60, 42,403,640.40 and 10,093,811.40 is: 15,140,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269,093.60 : 42,403,640.40 = 10,093,811.40 : x
  2. Step 2: Convert to fraction form
    28,269,093.60/42,403,640.40 = 10,093,811.40/x
  3. Step 3: Cross multiply
    28,269,093.60x = 42,403,640.40 × 10,093,811.40
  4. Step 4: Simplify right side
    28,269,093.60x = 428,014,348,871,020.56
  5. Step 5: Solve for x
    x = 428,014,348,871,020.56/28,269,093.60
  6. Step 6: Final answer
    x = 15,140,717.10

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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.