Home / 139,656,727.14-192,732,262.47-77,777,065.86

Finding the Fourth Proportional to 139,656,727.14, 192,732,262.47 and 77,777,065.86

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Solution

The fourth proportional to 139,656,727.14, 192,732,262.47 and 77,777,065.86 is: 107,335,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,656,727.14 : 192,732,262.47 = 77,777,065.86 : x
  2. Step 2: Convert to fraction form
    139,656,727.14/192,732,262.47 = 77,777,065.86/x
  3. Step 3: Cross multiply
    139,656,727.14x = 192,732,262.47 × 77,777,065.86
  4. Step 4: Simplify right side
    139,656,727.14x = 14,990,149,871,475,996
  5. Step 5: Solve for x
    x = 14,990,149,871,475,996/139,656,727.14
  6. Step 6: Final answer
    x = 107,335,680.70

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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.