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Finding the Fourth Proportional to 388,078,285.60, 582,400,863.60 and 273,287,029.60

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Solution

The fourth proportional to 388,078,285.60, 582,400,863.60 and 273,287,029.60 is: 410,130,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,078,285.60 : 582,400,863.60 = 273,287,029.60 : x
  2. Step 2: Convert to fraction form
    388,078,285.60/582,400,863.60 = 273,287,029.60/x
  3. Step 3: Cross multiply
    388,078,285.60x = 582,400,863.60 × 273,287,029.60
  4. Step 4: Simplify right side
    388,078,285.60x = 159,162,602,049,718,784
  5. Step 5: Solve for x
    x = 159,162,602,049,718,784/388,078,285.60
  6. Step 6: Final answer
    x = 410,130,141.15

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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.