Home / 777,116,219.72-1,165,546,647.04-279,023,623.60

Finding the Fourth Proportional to 777,116,219.72, 1,165,546,647.04 and 279,023,623.60

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Solution

The fourth proportional to 777,116,219.72, 1,165,546,647.04 and 279,023,623.60 is: 418,489,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,116,219.72 : 1,165,546,647.04 = 279,023,623.60 : x
  2. Step 2: Convert to fraction form
    777,116,219.72/1,165,546,647.04 = 279,023,623.60/x
  3. Step 3: Cross multiply
    777,116,219.72x = 1,165,546,647.04 × 279,023,623.60
  4. Step 4: Simplify right side
    777,116,219.72x = 325,215,048,931,931,008
  5. Step 5: Solve for x
    x = 325,215,048,931,931,008/777,116,219.72
  6. Step 6: Final answer
    x = 418,489,590.98

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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.