Home / 20,505,056.40-30,715,594.20-10,413,363.60

Finding the Fourth Proportional to 20,505,056.40, 30,715,594.20 and 10,413,363.60

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Solution

The fourth proportional to 20,505,056.40, 30,715,594.20 and 10,413,363.60 is: 15,598,720.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505,056.40 : 30,715,594.20 = 10,413,363.60 : x
  2. Step 2: Convert to fraction form
    20,505,056.40/30,715,594.20 = 10,413,363.60/x
  3. Step 3: Cross multiply
    20,505,056.40x = 30,715,594.20 × 10,413,363.60
  4. Step 4: Simplify right side
    20,505,056.40x = 319,852,650,594,651.12
  5. Step 5: Solve for x
    x = 319,852,650,594,651.12/20,505,056.40
  6. Step 6: Final answer
    x = 15,598,720.84

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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.