Home / 139,639,088.02-192,701,940.66-80,935,803.64

Finding the Fourth Proportional to 139,639,088.02, 192,701,940.66 and 80,935,803.64

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Solution

The fourth proportional to 139,639,088.02, 192,701,940.66 and 80,935,803.64 is: 111,691,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639,088.02 : 192,701,940.66 = 80,935,803.64 : x
  2. Step 2: Convert to fraction form
    139,639,088.02/192,701,940.66 = 80,935,803.64/x
  3. Step 3: Cross multiply
    139,639,088.02x = 192,701,940.66 × 80,935,803.64
  4. Step 4: Simplify right side
    139,639,088.02x = 15,596,486,430,304,692
  5. Step 5: Solve for x
    x = 15,596,486,430,304,692/139,639,088.02
  6. Step 6: Final answer
    x = 111,691,408.56

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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.