Home / 20,171,807.60-30,100,380.47-17,997,890.72

Finding the Fourth Proportional to 20,171,807.60, 30,100,380.47 and 17,997,890.72

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Solution

The fourth proportional to 20,171,807.60, 30,100,380.47 and 17,997,890.72 is: 26,856,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171,807.60 : 30,100,380.47 = 17,997,890.72 : x
  2. Step 2: Convert to fraction form
    20,171,807.60/30,100,380.47 = 17,997,890.72/x
  3. Step 3: Cross multiply
    20,171,807.60x = 30,100,380.47 × 17,997,890.72
  4. Step 4: Simplify right side
    20,171,807.60x = 541,743,358,329,482.19
  5. Step 5: Solve for x
    x = 541,743,358,329,482.19/20,171,807.60
  6. Step 6: Final answer
    x = 26,856,460.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.