Home / 28,545,724.56-39,393,138.60-15,492,983.88

Finding the Fourth Proportional to 28,545,724.56, 39,393,138.60 and 15,492,983.88

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Solution

The fourth proportional to 28,545,724.56, 39,393,138.60 and 15,492,983.88 is: 21,380,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,724.56 : 39,393,138.60 = 15,492,983.88 : x
  2. Step 2: Convert to fraction form
    28,545,724.56/39,393,138.60 = 15,492,983.88/x
  3. Step 3: Cross multiply
    28,545,724.56x = 39,393,138.60 × 15,492,983.88
  4. Step 4: Simplify right side
    28,545,724.56x = 610,317,261,312,405.88
  5. Step 5: Solve for x
    x = 610,317,261,312,405.88/28,545,724.56
  6. Step 6: Final answer
    x = 21,380,338.76

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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.