Home / 1,240,278,972.12-1,860,690,868.50-366,812,242.62

Finding the Fourth Proportional to 1,240,278,972.12, 1,860,690,868.50 and 366,812,242.62

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Solution

The fourth proportional to 1,240,278,972.12, 1,860,690,868.50 and 366,812,242.62 is: 550,298,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,278,972.12 : 1,860,690,868.50 = 366,812,242.62 : x
  2. Step 2: Convert to fraction form
    1,240,278,972.12/1,860,690,868.50 = 366,812,242.62/x
  3. Step 3: Cross multiply
    1,240,278,972.12x = 1,860,690,868.50 × 366,812,242.62
  4. Step 4: Simplify right side
    1,240,278,972.12x = 682,524,190,297,040,512
  5. Step 5: Solve for x
    x = 682,524,190,297,040,512/1,240,278,972.12
  6. Step 6: Final answer
    x = 550,298,929.22

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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.