Home / 1,389,621,741.81-2,084,499,651.77-456,923,940.33

Finding the Fourth Proportional to 1,389,621,741.81, 2,084,499,651.77 and 456,923,940.33

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Solution

The fourth proportional to 1,389,621,741.81, 2,084,499,651.77 and 456,923,940.33 is: 685,407,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,621,741.81 : 2,084,499,651.77 = 456,923,940.33 : x
  2. Step 2: Convert to fraction form
    1,389,621,741.81/2,084,499,651.77 = 456,923,940.33/x
  3. Step 3: Cross multiply
    1,389,621,741.81x = 2,084,499,651.77 × 456,923,940.33
  4. Step 4: Simplify right side
    1,389,621,741.81x = 952,457,794,503,261,184
  5. Step 5: Solve for x
    x = 952,457,794,503,261,184/1,389,621,741.81
  6. Step 6: Final answer
    x = 685,407,953.72

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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.