Home / 20,163,557,763.70-30,245,336,645.55-8,529,865,501.30

Finding the Fourth Proportional to 20,163,557,763.70, 30,245,336,645.55 and 8,529,865,501.30

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Solution

The fourth proportional to 20,163,557,763.70, 30,245,336,645.55 and 8,529,865,501.30 is: 12,794,798,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163,557,763.70 : 30,245,336,645.55 = 8,529,865,501.30 : x
  2. Step 2: Convert to fraction form
    20,163,557,763.70/30,245,336,645.55 = 8,529,865,501.30/x
  3. Step 3: Cross multiply
    20,163,557,763.70x = 30,245,336,645.55 × 8,529,865,501.30
  4. Step 4: Simplify right side
    20,163,557,763.70x = 257,988,653,628,081,602,560
  5. Step 5: Solve for x
    x = 257,988,653,628,081,602,560/20,163,557,763.70
  6. Step 6: Final answer
    x = 12,794,798,251.95

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Double scale
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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.