Home / 74,069,863.36-102,251,856-49,331,219.20

Finding the Fourth Proportional to 74,069,863.36, 102,251,856 and 49,331,219.20

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Solution

The fourth proportional to 74,069,863.36, 102,251,856 and 49,331,219.20 is: 68,100,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,069,863.36 : 102,251,856 = 49,331,219.20 : x
  2. Step 2: Convert to fraction form
    74,069,863.36/102,251,856 = 49,331,219.20/x
  3. Step 3: Cross multiply
    74,069,863.36x = 102,251,856 × 49,331,219.20
  4. Step 4: Simplify right side
    74,069,863.36x = 5,044,208,721,942,836
  5. Step 5: Solve for x
    x = 5,044,208,721,942,836/74,069,863.36
  6. Step 6: Final answer
    x = 68,100,688.91

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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.