Home / 142,833,787,892.84-197,110,659,465.87-78,604,512,201.40

Finding the Fourth Proportional to 142,833,787,892.84, 197,110,659,465.87 and 78,604,512,201.40

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Solution

The fourth proportional to 142,833,787,892.84, 197,110,659,465.87 and 78,604,512,201.40 is: 108,474,244,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,833,787,892.84 : 197,110,659,465.87 = 78,604,512,201.40 : x
  2. Step 2: Convert to fraction form
    142,833,787,892.84/197,110,659,465.87 = 78,604,512,201.40/x
  3. Step 3: Cross multiply
    142,833,787,892.84x = 197,110,659,465.87 × 78,604,512,201.40
  4. Step 4: Simplify right side
    142,833,787,892.84x = 15,493,787,237,009,992,974,336
  5. Step 5: Solve for x
    x = 15,493,787,237,009,992,974,336/142,833,787,892.84
  6. Step 6: Final answer
    x = 108,474,244,543.83

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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.