Home / 139,628,097.68-192,684,937.20-76,902,990.80

Finding the Fourth Proportional to 139,628,097.68, 192,684,937.20 and 76,902,990.80

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Solution

The fourth proportional to 139,628,097.68, 192,684,937.20 and 76,902,990.80 is: 106,125,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628,097.68 : 192,684,937.20 = 76,902,990.80 : x
  2. Step 2: Convert to fraction form
    139,628,097.68/192,684,937.20 = 76,902,990.80/x
  3. Step 3: Cross multiply
    139,628,097.68x = 192,684,937.20 × 76,902,990.80
  4. Step 4: Simplify right side
    139,628,097.68x = 14,818,047,952,790,176
  5. Step 5: Solve for x
    x = 14,818,047,952,790,176/139,628,097.68
  6. Step 6: Final answer
    x = 106,125,115.21

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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.