Home / 2,985,122,078.80-4,120,789,577.16-1,928,365,426.96

Finding the Fourth Proportional to 2,985,122,078.80, 4,120,789,577.16 and 1,928,365,426.96

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Solution

The fourth proportional to 2,985,122,078.80, 4,120,789,577.16 and 1,928,365,426.96 is: 2,661,997,714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985,122,078.80 : 4,120,789,577.16 = 1,928,365,426.96 : x
  2. Step 2: Convert to fraction form
    2,985,122,078.80/4,120,789,577.16 = 1,928,365,426.96/x
  3. Step 3: Cross multiply
    2,985,122,078.80x = 4,120,789,577.16 × 1,928,365,426.96
  4. Step 4: Simplify right side
    2,985,122,078.80x = 7,946,388,152,372,461,568
  5. Step 5: Solve for x
    x = 7,946,388,152,372,461,568/2,985,122,078.80
  6. Step 6: Final answer
    x = 2,661,997,714.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.