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Finding the Fourth Proportional to 806,361,869.90, 1,210,012,244.44 and 339,994,048.88

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Solution

The fourth proportional to 806,361,869.90, 1,210,012,244.44 and 339,994,048.88 is: 510,189,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,361,869.90 : 1,210,012,244.44 = 339,994,048.88 : x
  2. Step 2: Convert to fraction form
    806,361,869.90/1,210,012,244.44 = 339,994,048.88/x
  3. Step 3: Cross multiply
    806,361,869.90x = 1,210,012,244.44 × 339,994,048.88
  4. Step 4: Simplify right side
    806,361,869.90x = 411,396,962,183,706,880
  5. Step 5: Solve for x
    x = 411,396,962,183,706,880/806,361,869.90
  6. Step 6: Final answer
    x = 510,189,007.61

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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.