Home / 140,709,446.82-194,179,055.36-77,989,589.70

Finding the Fourth Proportional to 140,709,446.82, 194,179,055.36 and 77,989,589.70

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Solution

The fourth proportional to 140,709,446.82, 194,179,055.36 and 77,989,589.70 is: 107,625,644.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,709,446.82 : 194,179,055.36 = 77,989,589.70 : x
  2. Step 2: Convert to fraction form
    140,709,446.82/194,179,055.36 = 77,989,589.70/x
  3. Step 3: Cross multiply
    140,709,446.82x = 194,179,055.36 × 77,989,589.70
  4. Step 4: Simplify right side
    140,709,446.82x = 15,143,944,855,470,038
  5. Step 5: Solve for x
    x = 15,143,944,855,470,038/140,709,446.82
  6. Step 6: Final answer
    x = 107,625,644.17

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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.