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Finding the Fourth Proportional to 336,994,686.30, 505,492,029.45 and 279,551,819.10

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Solution

The fourth proportional to 336,994,686.30, 505,492,029.45 and 279,551,819.10 is: 419,327,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,994,686.30 : 505,492,029.45 = 279,551,819.10 : x
  2. Step 2: Convert to fraction form
    336,994,686.30/505,492,029.45 = 279,551,819.10/x
  3. Step 3: Cross multiply
    336,994,686.30x = 505,492,029.45 × 279,551,819.10
  4. Step 4: Simplify right side
    336,994,686.30x = 141,311,216,373,298,288
  5. Step 5: Solve for x
    x = 141,311,216,373,298,288/336,994,686.30
  6. Step 6: Final answer
    x = 419,327,728.65

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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.