Home / 139,519,345.45-192,535,168.80-76,794,102.33

Finding the Fourth Proportional to 139,519,345.45, 192,535,168.80 and 76,794,102.33

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Solution

The fourth proportional to 139,519,345.45, 192,535,168.80 and 76,794,102.33 is: 105,975,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519,345.45 : 192,535,168.80 = 76,794,102.33 : x
  2. Step 2: Convert to fraction form
    139,519,345.45/192,535,168.80 = 76,794,102.33/x
  3. Step 3: Cross multiply
    139,519,345.45x = 192,535,168.80 × 76,794,102.33
  4. Step 4: Simplify right side
    139,519,345.45x = 14,785,565,454,567,052
  5. Step 5: Solve for x
    x = 14,785,565,454,567,052/139,519,345.45
  6. Step 6: Final answer
    x = 105,975,020.22

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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.