Home / 142,833,787,679.21-197,110,659,171.15-78,604,511,987.71

Finding the Fourth Proportional to 142,833,787,679.21, 197,110,659,171.15 and 78,604,511,987.71

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Solution

The fourth proportional to 142,833,787,679.21, 197,110,659,171.15 and 78,604,511,987.71 is: 108,474,244,249.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,833,787,679.21 : 197,110,659,171.15 = 78,604,511,987.71 : x
  2. Step 2: Convert to fraction form
    142,833,787,679.21/197,110,659,171.15 = 78,604,511,987.71/x
  3. Step 3: Cross multiply
    142,833,787,679.21x = 197,110,659,171.15 × 78,604,511,987.71
  4. Step 4: Simplify right side
    142,833,787,679.21x = 15,493,787,171,723,684,085,760
  5. Step 5: Solve for x
    x = 15,493,787,171,723,684,085,760/142,833,787,679.21
  6. Step 6: Final answer
    x = 108,474,244,249.00

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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.