Home / 139,313,378,393.21-192,249,448,874.18-80,654,674,052.86

Finding the Fourth Proportional to 139,313,378,393.21, 192,249,448,874.18 and 80,654,674,052.86

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Solution

The fourth proportional to 139,313,378,393.21, 192,249,448,874.18 and 80,654,674,052.86 is: 111,301,705,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,313,378,393.21 : 192,249,448,874.18 = 80,654,674,052.86 : x
  2. Step 2: Convert to fraction form
    139,313,378,393.21/192,249,448,874.18 = 80,654,674,052.86/x
  3. Step 3: Cross multiply
    139,313,378,393.21x = 192,249,448,874.18 × 80,654,674,052.86
  4. Step 4: Simplify right side
    139,313,378,393.21x = 15,505,816,635,788,960,464,896
  5. Step 5: Solve for x
    x = 15,505,816,635,788,960,464,896/139,313,378,393.21
  6. Step 6: Final answer
    x = 111,301,705,655.46

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1.5x scale

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.