Home / 20,702,525,452.84-31,022,188,790.46-12,291,868,803.88

Finding the Fourth Proportional to 20,702,525,452.84, 31,022,188,790.46 and 12,291,868,803.88

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Solution

The fourth proportional to 20,702,525,452.84, 31,022,188,790.46 and 12,291,868,803.88 is: 18,419,041,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,525,452.84 : 31,022,188,790.46 = 12,291,868,803.88 : x
  2. Step 2: Convert to fraction form
    20,702,525,452.84/31,022,188,790.46 = 12,291,868,803.88/x
  3. Step 3: Cross multiply
    20,702,525,452.84x = 31,022,188,790.46 × 12,291,868,803.88
  4. Step 4: Simplify right side
    20,702,525,452.84x = 381,320,674,621,531,095,040
  5. Step 5: Solve for x
    x = 381,320,674,621,531,095,040/20,702,525,452.84
  6. Step 6: Final answer
    x = 18,419,041,458.98

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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.