Home / 777,665,351.90-1,166,499,211.40-317,603,521.22

Finding the Fourth Proportional to 777,665,351.90, 1,166,499,211.40 and 317,603,521.22

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Solution

The fourth proportional to 777,665,351.90, 1,166,499,211.40 and 317,603,521.22 is: 476,405,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,665,351.90 : 1,166,499,211.40 = 317,603,521.22 : x
  2. Step 2: Convert to fraction form
    777,665,351.90/1,166,499,211.40 = 317,603,521.22/x
  3. Step 3: Cross multiply
    777,665,351.90x = 1,166,499,211.40 × 317,603,521.22
  4. Step 4: Simplify right side
    777,665,351.90x = 370,484,257,033,572,608
  5. Step 5: Solve for x
    x = 370,484,257,033,572,608/777,665,351.90
  6. Step 6: Final answer
    x = 476,405,765.19

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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.