Home / 140,082,129.69-193,311,321.07-77,360,881.57

Finding the Fourth Proportional to 140,082,129.69, 193,311,321.07 and 77,360,881.57

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Solution

The fourth proportional to 140,082,129.69, 193,311,321.07 and 77,360,881.57 is: 106,756,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,082,129.69 : 193,311,321.07 = 77,360,881.57 : x
  2. Step 2: Convert to fraction form
    140,082,129.69/193,311,321.07 = 77,360,881.57/x
  3. Step 3: Cross multiply
    140,082,129.69x = 193,311,321.07 × 77,360,881.57
  4. Step 4: Simplify right side
    140,082,129.69x = 14,954,734,214,759,834
  5. Step 5: Solve for x
    x = 14,954,734,214,759,834/140,082,129.69
  6. Step 6: Final answer
    x = 106,756,902.17

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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.