Home / 20,784,754.86-31,173,458.13-5,639,867.34

Finding the Fourth Proportional to 20,784,754.86, 31,173,458.13 and 5,639,867.34

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Solution

The fourth proportional to 20,784,754.86, 31,173,458.13 and 5,639,867.34 is: 8,458,804.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,754.86 : 31,173,458.13 = 5,639,867.34 : x
  2. Step 2: Convert to fraction form
    20,784,754.86/31,173,458.13 = 5,639,867.34/x
  3. Step 3: Cross multiply
    20,784,754.86x = 31,173,458.13 × 5,639,867.34
  4. Step 4: Simplify right side
    20,784,754.86x = 175,814,168,382,244.47
  5. Step 5: Solve for x
    x = 175,814,168,382,244.47/20,784,754.86
  6. Step 6: Final answer
    x = 8,458,804.04

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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.