Home / 140,630,042.97-210,775,002.93-72,435,533.85

Finding the Fourth Proportional to 140,630,042.97, 210,775,002.93 and 72,435,533.85

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Solution

The fourth proportional to 140,630,042.97, 210,775,002.93 and 72,435,533.85 is: 108,565,705.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,630,042.97 : 210,775,002.93 = 72,435,533.85 : x
  2. Step 2: Convert to fraction form
    140,630,042.97/210,775,002.93 = 72,435,533.85/x
  3. Step 3: Cross multiply
    140,630,042.97x = 210,775,002.93 × 72,435,533.85
  4. Step 4: Simplify right side
    140,630,042.97x = 15,267,599,859,469,864
  5. Step 5: Solve for x
    x = 15,267,599,859,469,864/140,630,042.97
  6. Step 6: Final answer
    x = 108,565,705.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.