Home / 440,122,412.20-660,183,618.30-210,539,900.20

Finding the Fourth Proportional to 440,122,412.20, 660,183,618.30 and 210,539,900.20

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Solution

The fourth proportional to 440,122,412.20, 660,183,618.30 and 210,539,900.20 is: 315,809,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,122,412.20 : 660,183,618.30 = 210,539,900.20 : x
  2. Step 2: Convert to fraction form
    440,122,412.20/660,183,618.30 = 210,539,900.20/x
  3. Step 3: Cross multiply
    440,122,412.20x = 660,183,618.30 × 210,539,900.20
  4. Step 4: Simplify right side
    440,122,412.20x = 138,994,993,110,556,880
  5. Step 5: Solve for x
    x = 138,994,993,110,556,880/440,122,412.20
  6. Step 6: Final answer
    x = 315,809,850.30

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1.5x scale

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.