Home / 51,399,145.20-77,098,717.80-49,131,663.60

Finding the Fourth Proportional to 51,399,145.20, 77,098,717.80 and 49,131,663.60

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Solution

The fourth proportional to 51,399,145.20, 77,098,717.80 and 49,131,663.60 is: 73,697,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,399,145.20 : 77,098,717.80 = 49,131,663.60 : x
  2. Step 2: Convert to fraction form
    51,399,145.20/77,098,717.80 = 49,131,663.60/x
  3. Step 3: Cross multiply
    51,399,145.20x = 77,098,717.80 × 49,131,663.60
  4. Step 4: Simplify right side
    51,399,145.20x = 3,787,988,266,940,932
  5. Step 5: Solve for x
    x = 3,787,988,266,940,932/51,399,145.20
  6. Step 6: Final answer
    x = 73,697,495.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.