Home / 488,880,438.60-733,450,565.70-212,413,020.60

Finding the Fourth Proportional to 488,880,438.60, 733,450,565.70 and 212,413,020.60

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Solution

The fourth proportional to 488,880,438.60, 733,450,565.70 and 212,413,020.60 is: 318,675,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,880,438.60 : 733,450,565.70 = 212,413,020.60 : x
  2. Step 2: Convert to fraction form
    488,880,438.60/733,450,565.70 = 212,413,020.60/x
  3. Step 3: Cross multiply
    488,880,438.60x = 733,450,565.70 × 212,413,020.60
  4. Step 4: Simplify right side
    488,880,438.60x = 155,794,450,121,115,744
  5. Step 5: Solve for x
    x = 155,794,450,121,115,744/488,880,438.60
  6. Step 6: Final answer
    x = 318,675,974.37

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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.