Home / 1,611,874,999.80-2,413,781,421.30-1,289,388,727.80

Finding the Fourth Proportional to 1,611,874,999.80, 2,413,781,421.30 and 1,289,388,727.80

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Solution

The fourth proportional to 1,611,874,999.80, 2,413,781,421.30 and 1,289,388,727.80 is: 1,930,858,507.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,874,999.80 : 2,413,781,421.30 = 1,289,388,727.80 : x
  2. Step 2: Convert to fraction form
    1,611,874,999.80/2,413,781,421.30 = 1,289,388,727.80/x
  3. Step 3: Cross multiply
    1,611,874,999.80x = 2,413,781,421.30 × 1,289,388,727.80
  4. Step 4: Simplify right side
    1,611,874,999.80x = 3,112,302,555,997,282,816
  5. Step 5: Solve for x
    x = 3,112,302,555,997,282,816/1,611,874,999.80
  6. Step 6: Final answer
    x = 1,930,858,507.26

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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.