Home / 139,519,328.23-192,535,145.04-76,794,085.11

Finding the Fourth Proportional to 139,519,328.23, 192,535,145.04 and 76,794,085.11

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Solution

The fourth proportional to 139,519,328.23, 192,535,145.04 and 76,794,085.11 is: 105,974,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519,328.23 : 192,535,145.04 = 76,794,085.11 : x
  2. Step 2: Convert to fraction form
    139,519,328.23/192,535,145.04 = 76,794,085.11/x
  3. Step 3: Cross multiply
    139,519,328.23x = 192,535,145.04 × 76,794,085.11
  4. Step 4: Simplify right side
    139,519,328.23x = 14,785,560,314,867,954
  5. Step 5: Solve for x
    x = 14,785,560,314,867,954/139,519,328.23
  6. Step 6: Final answer
    x = 105,974,996.46

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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.