Home / 489,216,145.20-733,824,217.80-198,082,705.20

Finding the Fourth Proportional to 489,216,145.20, 733,824,217.80 and 198,082,705.20

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Solution

The fourth proportional to 489,216,145.20, 733,824,217.80 and 198,082,705.20 is: 297,124,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,216,145.20 : 733,824,217.80 = 198,082,705.20 : x
  2. Step 2: Convert to fraction form
    489,216,145.20/733,824,217.80 = 198,082,705.20/x
  3. Step 3: Cross multiply
    489,216,145.20x = 733,824,217.80 × 198,082,705.20
  4. Step 4: Simplify right side
    489,216,145.20x = 145,357,886,203,097,984
  5. Step 5: Solve for x
    x = 145,357,886,203,097,984/489,216,145.20
  6. Step 6: Final answer
    x = 297,124,057.80

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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.