Home / 20,698,759,787.52-28,564,288,506.72-11,788,917,588.48

Finding the Fourth Proportional to 20,698,759,787.52, 28,564,288,506.72 and 11,788,917,588.48

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Solution

The fourth proportional to 20,698,759,787.52, 28,564,288,506.72 and 11,788,917,588.48 is: 16,268,706,272.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,759,787.52 : 28,564,288,506.72 = 11,788,917,588.48 : x
  2. Step 2: Convert to fraction form
    20,698,759,787.52/28,564,288,506.72 = 11,788,917,588.48/x
  3. Step 3: Cross multiply
    20,698,759,787.52x = 28,564,288,506.72 × 11,788,917,588.48
  4. Step 4: Simplify right side
    20,698,759,787.52x = 336,742,043,179,288,494,080
  5. Step 5: Solve for x
    x = 336,742,043,179,288,494,080/20,698,759,787.52
  6. Step 6: Final answer
    x = 16,268,706,272.07

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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.