Home / 660,436,894.20-990,403,398.90-200,222,110.20

Finding the Fourth Proportional to 660,436,894.20, 990,403,398.90 and 200,222,110.20

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Solution

The fourth proportional to 660,436,894.20, 990,403,398.90 and 200,222,110.20 is: 300,256,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,436,894.20 : 990,403,398.90 = 200,222,110.20 : x
  2. Step 2: Convert to fraction form
    660,436,894.20/990,403,398.90 = 200,222,110.20/x
  3. Step 3: Cross multiply
    660,436,894.20x = 990,403,398.90 × 200,222,110.20
  4. Step 4: Simplify right side
    660,436,894.20x = 198,300,658,477,010,336
  5. Step 5: Solve for x
    x = 198,300,658,477,010,336/660,436,894.20
  6. Step 6: Final answer
    x = 300,256,784.89

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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.