Home / 49,532,105.70-74,307,015.90-20,781,147.60

Finding the Fourth Proportional to 49,532,105.70, 74,307,015.90 and 20,781,147.60

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Solution

The fourth proportional to 49,532,105.70, 74,307,015.90 and 20,781,147.60 is: 31,175,437.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,532,105.70 : 74,307,015.90 = 20,781,147.60 : x
  2. Step 2: Convert to fraction form
    49,532,105.70/74,307,015.90 = 20,781,147.60/x
  3. Step 3: Cross multiply
    49,532,105.70x = 74,307,015.90 × 20,781,147.60
  4. Step 4: Simplify right side
    49,532,105.70x = 1,544,185,065,133,447
  5. Step 5: Solve for x
    x = 1,544,185,065,133,447/49,532,105.70
  6. Step 6: Final answer
    x = 31,175,437.49

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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.