Home / 139,639,566.09-192,702,598.92-80,936,280.98

Finding the Fourth Proportional to 139,639,566.09, 192,702,598.92 and 80,936,280.98

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Solution

The fourth proportional to 139,639,566.09, 192,702,598.92 and 80,936,280.98 is: 111,692,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639,566.09 : 192,702,598.92 = 80,936,280.98 : x
  2. Step 2: Convert to fraction form
    139,639,566.09/192,702,598.92 = 80,936,280.98/x
  3. Step 3: Cross multiply
    139,639,566.09x = 192,702,598.92 × 80,936,280.98
  4. Step 4: Simplify right side
    139,639,566.09x = 15,596,631,690,801,850
  5. Step 5: Solve for x
    x = 15,596,631,690,801,850/139,639,566.09
  6. Step 6: Final answer
    x = 111,692,066.42

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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.