Home / 1,308,268,448.96-1,962,169,669.77-521,256,143.45

Finding the Fourth Proportional to 1,308,268,448.96, 1,962,169,669.77 and 521,256,143.45

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Solution

The fourth proportional to 1,308,268,448.96, 1,962,169,669.77 and 521,256,143.45 is: 781,791,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,268,448.96 : 1,962,169,669.77 = 521,256,143.45 : x
  2. Step 2: Convert to fraction form
    1,308,268,448.96/1,962,169,669.77 = 521,256,143.45/x
  3. Step 3: Cross multiply
    1,308,268,448.96x = 1,962,169,669.77 × 521,256,143.45
  4. Step 4: Simplify right side
    1,308,268,448.96x = 1,022,792,994,858,870,272
  5. Step 5: Solve for x
    x = 1,022,792,994,858,870,272/1,308,268,448.96
  6. Step 6: Final answer
    x = 781,791,379.03

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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.