Home / 20,810,072,145.30-31,206,038,291.55-8,384,272,977.30

Finding the Fourth Proportional to 20,810,072,145.30, 31,206,038,291.55 and 8,384,272,977.30

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Solution

The fourth proportional to 20,810,072,145.30, 31,206,038,291.55 and 8,384,272,977.30 is: 12,572,755,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,072,145.30 : 31,206,038,291.55 = 8,384,272,977.30 : x
  2. Step 2: Convert to fraction form
    20,810,072,145.30/31,206,038,291.55 = 8,384,272,977.30/x
  3. Step 3: Cross multiply
    20,810,072,145.30x = 31,206,038,291.55 × 8,384,272,977.30
  4. Step 4: Simplify right side
    20,810,072,145.30x = 261,639,943,576,431,722,496
  5. Step 5: Solve for x
    x = 261,639,943,576,431,722,496/20,810,072,145.30
  6. Step 6: Final answer
    x = 12,572,755,238.41

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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.