Home / 20,977,231,081.30-31,460,807,773.95-12,114,905,218.90

Finding the Fourth Proportional to 20,977,231,081.30, 31,460,807,773.95 and 12,114,905,218.90

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Solution

The fourth proportional to 20,977,231,081.30, 31,460,807,773.95 and 12,114,905,218.90 is: 18,169,447,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977,231,081.30 : 31,460,807,773.95 = 12,114,905,218.90 : x
  2. Step 2: Convert to fraction form
    20,977,231,081.30/31,460,807,773.95 = 12,114,905,218.90/x
  3. Step 3: Cross multiply
    20,977,231,081.30x = 31,460,807,773.95 × 12,114,905,218.90
  4. Step 4: Simplify right side
    20,977,231,081.30x = 381,144,704,291,436,560,384
  5. Step 5: Solve for x
    x = 381,144,704,291,436,560,384/20,977,231,081.30
  6. Step 6: Final answer
    x = 18,169,447,760.49

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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.