Home / 388,529,564.80-582,719,697.60-115,909,225.60

Finding the Fourth Proportional to 388,529,564.80, 582,719,697.60 and 115,909,225.60

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Solution

The fourth proportional to 388,529,564.80, 582,719,697.60 and 115,909,225.60 is: 173,841,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,529,564.80 : 582,719,697.60 = 115,909,225.60 : x
  2. Step 2: Convert to fraction form
    388,529,564.80/582,719,697.60 = 115,909,225.60/x
  3. Step 3: Cross multiply
    388,529,564.80x = 582,719,697.60 × 115,909,225.60
  4. Step 4: Simplify right side
    388,529,564.80x = 67,542,588,890,682,176
  5. Step 5: Solve for x
    x = 67,542,588,890,682,176/388,529,564.80
  6. Step 6: Final answer
    x = 173,841,568.34

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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.