Home / 20,715,331,406.80-31,072,997,110.20-11,863,083,240.40

Finding the Fourth Proportional to 20,715,331,406.80, 31,072,997,110.20 and 11,863,083,240.40

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Solution

The fourth proportional to 20,715,331,406.80, 31,072,997,110.20 and 11,863,083,240.40 is: 17,794,624,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,331,406.80 : 31,072,997,110.20 = 11,863,083,240.40 : x
  2. Step 2: Convert to fraction form
    20,715,331,406.80/31,072,997,110.20 = 11,863,083,240.40/x
  3. Step 3: Cross multiply
    20,715,331,406.80x = 31,072,997,110.20 × 11,863,083,240.40
  4. Step 4: Simplify right side
    20,715,331,406.80x = 368,621,551,247,011,217,408
  5. Step 5: Solve for x
    x = 368,621,551,247,011,217,408/20,715,331,406.80
  6. Step 6: Final answer
    x = 17,794,624,860.60

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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.