Home / 18,887,825.60-28,338,892.32-11,320,222.40

Finding the Fourth Proportional to 18,887,825.60, 28,338,892.32 and 11,320,222.40

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Solution

The fourth proportional to 18,887,825.60, 28,338,892.32 and 11,320,222.40 is: 16,984,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,825.60 : 28,338,892.32 = 11,320,222.40 : x
  2. Step 2: Convert to fraction form
    18,887,825.60/28,338,892.32 = 11,320,222.40/x
  3. Step 3: Cross multiply
    18,887,825.60x = 28,338,892.32 × 11,320,222.40
  4. Step 4: Simplify right side
    18,887,825.60x = 320,802,563,632,052
  5. Step 5: Solve for x
    x = 320,802,563,632,052/18,887,825.60
  6. Step 6: Final answer
    x = 16,984,621.23

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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.