Home / 777,116,442.15-1,165,546,980.70-279,023,846.04

Finding the Fourth Proportional to 777,116,442.15, 1,165,546,980.70 and 279,023,846.04

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Solution

The fourth proportional to 777,116,442.15, 1,165,546,980.70 and 279,023,846.04 is: 418,489,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,116,442.15 : 1,165,546,980.70 = 279,023,846.04 : x
  2. Step 2: Convert to fraction form
    777,116,442.15/1,165,546,980.70 = 279,023,846.04/x
  3. Step 3: Cross multiply
    777,116,442.15x = 1,165,546,980.70 × 279,023,846.04
  4. Step 4: Simplify right side
    777,116,442.15x = 325,215,401,294,526,144
  5. Step 5: Solve for x
    x = 325,215,401,294,526,144/777,116,442.15
  6. Step 6: Final answer
    x = 418,489,924.62

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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.