Home / 20,117,116.32-27,766,959.84-12,388,638.24

Finding the Fourth Proportional to 20,117,116.32, 27,766,959.84 and 12,388,638.24

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Solution

The fourth proportional to 20,117,116.32, 27,766,959.84 and 12,388,638.24 is: 17,099,608.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,116.32 : 27,766,959.84 = 12,388,638.24 : x
  2. Step 2: Convert to fraction form
    20,117,116.32/27,766,959.84 = 12,388,638.24/x
  3. Step 3: Cross multiply
    20,117,116.32x = 27,766,959.84 × 12,388,638.24
  4. Step 4: Simplify right side
    20,117,116.32x = 343,994,820,482,368.31
  5. Step 5: Solve for x
    x = 343,994,820,482,368.31/20,117,116.32
  6. Step 6: Final answer
    x = 17,099,608.86

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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.