Home / 139,420,673.93-208,939,689.97-88,211,019.53

Finding the Fourth Proportional to 139,420,673.93, 208,939,689.97 and 88,211,019.53

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Solution

The fourth proportional to 139,420,673.93, 208,939,689.97 and 88,211,019.53 is: 132,195,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,420,673.93 : 208,939,689.97 = 88,211,019.53 : x
  2. Step 2: Convert to fraction form
    139,420,673.93/208,939,689.97 = 88,211,019.53/x
  3. Step 3: Cross multiply
    139,420,673.93x = 208,939,689.97 × 88,211,019.53
  4. Step 4: Simplify right side
    139,420,673.93x = 18,430,783,072,535,816
  5. Step 5: Solve for x
    x = 18,430,783,072,535,816/139,420,673.93
  6. Step 6: Final answer
    x = 132,195,481.15

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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.