Home / 51,600,495.49-77,400,721.68-18,813,519.78

Finding the Fourth Proportional to 51,600,495.49, 77,400,721.68 and 18,813,519.78

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Solution

The fourth proportional to 51,600,495.49, 77,400,721.68 and 18,813,519.78 is: 28,220,271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,600,495.49 : 77,400,721.68 = 18,813,519.78 : x
  2. Step 2: Convert to fraction form
    51,600,495.49/77,400,721.68 = 18,813,519.78/x
  3. Step 3: Cross multiply
    51,600,495.49x = 77,400,721.68 × 18,813,519.78
  4. Step 4: Simplify right side
    51,600,495.49x = 1,456,180,008,057,977.75
  5. Step 5: Solve for x
    x = 1,456,180,008,057,977.75/51,600,495.49
  6. Step 6: Final answer
    x = 28,220,271.81

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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.