Home / 20,438,772.12-30,632,913.99-17,539,761.60

Finding the Fourth Proportional to 20,438,772.12, 30,632,913.99 and 17,539,761.60

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Solution

The fourth proportional to 20,438,772.12, 30,632,913.99 and 17,539,761.60 is: 26,287,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438,772.12 : 30,632,913.99 = 17,539,761.60 : x
  2. Step 2: Convert to fraction form
    20,438,772.12/30,632,913.99 = 17,539,761.60/x
  3. Step 3: Cross multiply
    20,438,772.12x = 30,632,913.99 × 17,539,761.60
  4. Step 4: Simplify right side
    20,438,772.12x = 537,294,008,497,904.81
  5. Step 5: Solve for x
    x = 537,294,008,497,904.81/20,438,772.12
  6. Step 6: Final answer
    x = 26,287,978.82

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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.