Home / 21,976,031.40-32,978,043.90-12,878,111.40

Finding the Fourth Proportional to 21,976,031.40, 32,978,043.90 and 12,878,111.40

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Solution

The fourth proportional to 21,976,031.40, 32,978,043.90 and 12,878,111.40 is: 19,325,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976,031.40 : 32,978,043.90 = 12,878,111.40 : x
  2. Step 2: Convert to fraction form
    21,976,031.40/32,978,043.90 = 12,878,111.40/x
  3. Step 3: Cross multiply
    21,976,031.40x = 32,978,043.90 × 12,878,111.40
  4. Step 4: Simplify right side
    21,976,031.40x = 424,694,923,098,290.44
  5. Step 5: Solve for x
    x = 424,694,923,098,290.44/21,976,031.40
  6. Step 6: Final answer
    x = 19,325,369.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.