Home / 20,977,231,079.80-31,460,807,771.70-12,114,905,217.40

Finding the Fourth Proportional to 20,977,231,079.80, 31,460,807,771.70 and 12,114,905,217.40

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Solution

The fourth proportional to 20,977,231,079.80, 31,460,807,771.70 and 12,114,905,217.40 is: 18,169,447,758.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977,231,079.80 : 31,460,807,771.70 = 12,114,905,217.40 : x
  2. Step 2: Convert to fraction form
    20,977,231,079.80/31,460,807,771.70 = 12,114,905,217.40/x
  3. Step 3: Cross multiply
    20,977,231,079.80x = 31,460,807,771.70 × 12,114,905,217.40
  4. Step 4: Simplify right side
    20,977,231,079.80x = 381,144,704,216,986,812,416
  5. Step 5: Solve for x
    x = 381,144,704,216,986,812,416/20,977,231,079.80
  6. Step 6: Final answer
    x = 18,169,447,758.24

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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.