Home / 74,704,552.47-112,048,412.39-20,121,133.09

Finding the Fourth Proportional to 74,704,552.47, 112,048,412.39 and 20,121,133.09

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Solution

The fourth proportional to 74,704,552.47, 112,048,412.39 and 20,121,133.09 is: 30,179,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704,552.47 : 112,048,412.39 = 20,121,133.09 : x
  2. Step 2: Convert to fraction form
    74,704,552.47/112,048,412.39 = 20,121,133.09/x
  3. Step 3: Cross multiply
    74,704,552.47x = 112,048,412.39 × 20,121,133.09
  4. Step 4: Simplify right side
    74,704,552.47x = 2,254,541,018,222,395
  5. Step 5: Solve for x
    x = 2,254,541,018,222,395/74,704,552.47
  6. Step 6: Final answer
    x = 30,179,432.76

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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.