Home / 7,777,219.40-11,665,829.10-6,993,398.60

Finding the Fourth Proportional to 7,777,219.40, 11,665,829.10 and 6,993,398.60

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Solution

The fourth proportional to 7,777,219.40, 11,665,829.10 and 6,993,398.60 is: 10,490,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,219.40 : 11,665,829.10 = 6,993,398.60 : x
  2. Step 2: Convert to fraction form
    7,777,219.40/11,665,829.10 = 6,993,398.60/x
  3. Step 3: Cross multiply
    7,777,219.40x = 11,665,829.10 × 6,993,398.60
  4. Step 4: Simplify right side
    7,777,219.40x = 81,583,792,895,779.25
  5. Step 5: Solve for x
    x = 81,583,792,895,779.25/7,777,219.40
  6. Step 6: Final answer
    x = 10,490,097.90

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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.