Home / 20,147,666,939.70-30,221,500,409.55-9,661,485,704.10

Finding the Fourth Proportional to 20,147,666,939.70, 30,221,500,409.55 and 9,661,485,704.10

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Solution

The fourth proportional to 20,147,666,939.70, 30,221,500,409.55 and 9,661,485,704.10 is: 14,492,228,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147,666,939.70 : 30,221,500,409.55 = 9,661,485,704.10 : x
  2. Step 2: Convert to fraction form
    20,147,666,939.70/30,221,500,409.55 = 9,661,485,704.10/x
  3. Step 3: Cross multiply
    20,147,666,939.70x = 30,221,500,409.55 × 9,661,485,704.10
  4. Step 4: Simplify right side
    20,147,666,939.70x = 291,984,594,163,319,635,968
  5. Step 5: Solve for x
    x = 291,984,594,163,319,635,968/20,147,666,939.70
  6. Step 6: Final answer
    x = 14,492,228,556.15

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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.