Home / 139,231,211.18-192,127,823.23-80,497,661.32

Finding the Fourth Proportional to 139,231,211.18, 192,127,823.23 and 80,497,661.32

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Solution

The fourth proportional to 139,231,211.18, 192,127,823.23 and 80,497,661.32 is: 111,080,269.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231,211.18 : 192,127,823.23 = 80,497,661.32 : x
  2. Step 2: Convert to fraction form
    139,231,211.18/192,127,823.23 = 80,497,661.32/x
  3. Step 3: Cross multiply
    139,231,211.18x = 192,127,823.23 × 80,497,661.32
  4. Step 4: Simplify right side
    139,231,211.18x = 15,465,840,443,154,240
  5. Step 5: Solve for x
    x = 15,465,840,443,154,240/139,231,211.18
  6. Step 6: Final answer
    x = 111,080,269.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.