Home / 74,704,551.47-112,048,410.89-20,121,132.09

Finding the Fourth Proportional to 74,704,551.47, 112,048,410.89 and 20,121,132.09

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Solution

The fourth proportional to 74,704,551.47, 112,048,410.89 and 20,121,132.09 is: 30,179,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704,551.47 : 112,048,410.89 = 20,121,132.09 : x
  2. Step 2: Convert to fraction form
    74,704,551.47/112,048,410.89 = 20,121,132.09/x
  3. Step 3: Cross multiply
    74,704,551.47x = 112,048,410.89 × 20,121,132.09
  4. Step 4: Simplify right side
    74,704,551.47x = 2,254,540,876,042,587
  5. Step 5: Solve for x
    x = 2,254,540,876,042,587/74,704,551.47
  6. Step 6: Final answer
    x = 30,179,431.26

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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.