Home / 28,315,021.60-42,504,025.20-15,560,437.60

Finding the Fourth Proportional to 28,315,021.60, 42,504,025.20 and 15,560,437.60

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Solution

The fourth proportional to 28,315,021.60, 42,504,025.20 and 15,560,437.60 is: 23,357,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315,021.60 : 42,504,025.20 = 15,560,437.60 : x
  2. Step 2: Convert to fraction form
    28,315,021.60/42,504,025.20 = 15,560,437.60/x
  3. Step 3: Cross multiply
    28,315,021.60x = 42,504,025.20 × 15,560,437.60
  4. Step 4: Simplify right side
    28,315,021.60x = 661,381,231,873,427.50
  5. Step 5: Solve for x
    x = 661,381,231,873,427.50/28,315,021.60
  6. Step 6: Final answer
    x = 23,357,963.18

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1.5x scale

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.