Home / 20,698,759,784.82-28,564,288,502.86-11,788,917,585.78

Finding the Fourth Proportional to 20,698,759,784.82, 28,564,288,502.86 and 11,788,917,585.78

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Solution

The fourth proportional to 20,698,759,784.82, 28,564,288,502.86 and 11,788,917,585.78 is: 16,268,706,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,759,784.82 : 28,564,288,502.86 = 11,788,917,585.78 : x
  2. Step 2: Convert to fraction form
    20,698,759,784.82/28,564,288,502.86 = 11,788,917,585.78/x
  3. Step 3: Cross multiply
    20,698,759,784.82x = 28,564,288,502.86 × 11,788,917,585.78
  4. Step 4: Simplify right side
    20,698,759,784.82x = 336,742,043,056,659,759,104
  5. Step 5: Solve for x
    x = 336,742,043,056,659,759,104/20,698,759,784.82
  6. Step 6: Final answer
    x = 16,268,706,268.27

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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.