Home / 28,765,847.52-39,697,004.88-15,713,287.20

Finding the Fourth Proportional to 28,765,847.52, 39,697,004.88 and 15,713,287.20

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Solution

The fourth proportional to 28,765,847.52, 39,697,004.88 and 15,713,287.20 is: 21,684,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765,847.52 : 39,697,004.88 = 15,713,287.20 : x
  2. Step 2: Convert to fraction form
    28,765,847.52/39,697,004.88 = 15,713,287.20/x
  3. Step 3: Cross multiply
    28,765,847.52x = 39,697,004.88 × 15,713,287.20
  4. Step 4: Simplify right side
    28,765,847.52x = 623,770,438,659,241.50
  5. Step 5: Solve for x
    x = 623,770,438,659,241.50/28,765,847.52
  6. Step 6: Final answer
    x = 21,684,410.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.