Home / 20,810,072,152.80-31,206,038,302.80-8,384,272,984.80

Finding the Fourth Proportional to 20,810,072,152.80, 31,206,038,302.80 and 8,384,272,984.80

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Solution

The fourth proportional to 20,810,072,152.80, 31,206,038,302.80 and 8,384,272,984.80 is: 12,572,755,249.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,072,152.80 : 31,206,038,302.80 = 8,384,272,984.80 : x
  2. Step 2: Convert to fraction form
    20,810,072,152.80/31,206,038,302.80 = 8,384,272,984.80/x
  3. Step 3: Cross multiply
    20,810,072,152.80x = 31,206,038,302.80 × 8,384,272,984.80
  4. Step 4: Simplify right side
    20,810,072,152.80x = 261,639,943,904,800,079,872
  5. Step 5: Solve for x
    x = 261,639,943,904,800,079,872/20,810,072,152.80
  6. Step 6: Final answer
    x = 12,572,755,249.65

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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.