Home / 28,543,640.64-39,390,364.29-15,490,914.54

Finding the Fourth Proportional to 28,543,640.64, 39,390,364.29 and 15,490,914.54

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Solution

The fourth proportional to 28,543,640.64, 39,390,364.29 and 15,490,914.54 is: 21,377,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,640.64 : 39,390,364.29 = 15,490,914.54 : x
  2. Step 2: Convert to fraction form
    28,543,640.64/39,390,364.29 = 15,490,914.54/x
  3. Step 3: Cross multiply
    28,543,640.64x = 39,390,364.29 × 15,490,914.54
  4. Step 4: Simplify right side
    28,543,640.64x = 610,192,766,915,857.75
  5. Step 5: Solve for x
    x = 610,192,766,915,857.75/28,543,640.64
  6. Step 6: Final answer
    x = 21,377,538.16

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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.