Home / 20,977,812-31,463,728.70-6,600,506.27

Finding the Fourth Proportional to 20,977,812, 31,463,728.70 and 6,600,506.27

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Solution

The fourth proportional to 20,977,812, 31,463,728.70 and 6,600,506.27 is: 9,899,818.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977,812 : 31,463,728.70 = 6,600,506.27 : x
  2. Step 2: Convert to fraction form
    20,977,812/31,463,728.70 = 6,600,506.27/x
  3. Step 3: Cross multiply
    20,977,812x = 31,463,728.70 × 6,600,506.27
  4. Step 4: Simplify right side
    20,977,812x = 207,676,538,371,607.75
  5. Step 5: Solve for x
    x = 207,676,538,371,607.75/20,977,812
  6. Step 6: Final answer
    x = 9,899,818.84

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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.