Home / 808,545,794.80-1,212,818,692.20-290,993,119.60

Finding the Fourth Proportional to 808,545,794.80, 1,212,818,692.20 and 290,993,119.60

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Solution

The fourth proportional to 808,545,794.80, 1,212,818,692.20 and 290,993,119.60 is: 436,489,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,545,794.80 : 1,212,818,692.20 = 290,993,119.60 : x
  2. Step 2: Convert to fraction form
    808,545,794.80/1,212,818,692.20 = 290,993,119.60/x
  3. Step 3: Cross multiply
    808,545,794.80x = 1,212,818,692.20 × 290,993,119.60
  4. Step 4: Simplify right side
    808,545,794.80x = 352,921,894,752,470,208
  5. Step 5: Solve for x
    x = 352,921,894,752,470,208/808,545,794.80
  6. Step 6: Final answer
    x = 436,489,679.40

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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.