Home / 142,833,787,658.60-197,110,659,142.79-78,604,511,967.17

Finding the Fourth Proportional to 142,833,787,658.60, 197,110,659,142.79 and 78,604,511,967.17

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Solution

The fourth proportional to 142,833,787,658.60, 197,110,659,142.79 and 78,604,511,967.17 is: 108,474,244,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,833,787,658.60 : 197,110,659,142.79 = 78,604,511,967.17 : x
  2. Step 2: Convert to fraction form
    142,833,787,658.60/197,110,659,142.79 = 78,604,511,967.17/x
  3. Step 3: Cross multiply
    142,833,787,658.60x = 197,110,659,142.79 × 78,604,511,967.17
  4. Step 4: Simplify right side
    142,833,787,658.60x = 15,493,787,165,445,217,845,248
  5. Step 5: Solve for x
    x = 15,493,787,165,445,217,845,248/142,833,787,658.60
  6. Step 6: Final answer
    x = 108,474,244,220.69

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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.