Home / 15,639,568.86-21,582,396.63-8,764,185.18

Finding the Fourth Proportional to 15,639,568.86, 21,582,396.63 and 8,764,185.18

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Solution

The fourth proportional to 15,639,568.86, 21,582,396.63 and 8,764,185.18 is: 12,094,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639,568.86 : 21,582,396.63 = 8,764,185.18 : x
  2. Step 2: Convert to fraction form
    15,639,568.86/21,582,396.63 = 8,764,185.18/x
  3. Step 3: Cross multiply
    15,639,568.86x = 21,582,396.63 × 8,764,185.18
  4. Step 4: Simplify right side
    15,639,568.86x = 189,152,120,693,527.94
  5. Step 5: Solve for x
    x = 189,152,120,693,527.94/15,639,568.86
  6. Step 6: Final answer
    x = 12,094,458.77

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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.