Home / 140,709,446.57-194,179,055.01-77,989,589.45

Finding the Fourth Proportional to 140,709,446.57, 194,179,055.01 and 77,989,589.45

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Solution

The fourth proportional to 140,709,446.57, 194,179,055.01 and 77,989,589.45 is: 107,625,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,709,446.57 : 194,179,055.01 = 77,989,589.45 : x
  2. Step 2: Convert to fraction form
    140,709,446.57/194,179,055.01 = 77,989,589.45/x
  3. Step 3: Cross multiply
    140,709,446.57x = 194,179,055.01 × 77,989,589.45
  4. Step 4: Simplify right side
    140,709,446.57x = 15,143,944,780,018,866
  5. Step 5: Solve for x
    x = 15,143,944,780,018,866/140,709,446.57
  6. Step 6: Final answer
    x = 107,625,643.83

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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.