Home / 20,694,857,138.40-31,042,285,707.60-20,477,178,904.80

Finding the Fourth Proportional to 20,694,857,138.40, 31,042,285,707.60 and 20,477,178,904.80

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Solution

The fourth proportional to 20,694,857,138.40, 31,042,285,707.60 and 20,477,178,904.80 is: 30,715,768,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694,857,138.40 : 31,042,285,707.60 = 20,477,178,904.80 : x
  2. Step 2: Convert to fraction form
    20,694,857,138.40/31,042,285,707.60 = 20,477,178,904.80/x
  3. Step 3: Cross multiply
    20,694,857,138.40x = 31,042,285,707.60 × 20,477,178,904.80
  4. Step 4: Simplify right side
    20,694,857,138.40x = 635,658,438,048,441,171,968
  5. Step 5: Solve for x
    x = 635,658,438,048,441,171,968/20,694,857,138.40
  6. Step 6: Final answer
    x = 30,715,768,357.20

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1.5x scale

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.