Home / 139,470,297.12-192,470,751.32-76,753,610.64

Finding the Fourth Proportional to 139,470,297.12, 192,470,751.32 and 76,753,610.64

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Solution

The fourth proportional to 139,470,297.12, 192,470,751.32 and 76,753,610.64 is: 105,920,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,470,297.12 : 192,470,751.32 = 76,753,610.64 : x
  2. Step 2: Convert to fraction form
    139,470,297.12/192,470,751.32 = 76,753,610.64/x
  3. Step 3: Cross multiply
    139,470,297.12x = 192,470,751.32 × 76,753,610.64
  4. Step 4: Simplify right side
    139,470,297.12x = 14,772,825,106,019,778
  5. Step 5: Solve for x
    x = 14,772,825,106,019,778/139,470,297.12
  6. Step 6: Final answer
    x = 105,920,940.95

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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.