Home / 21,893,891.20-32,840,836.80-13,831,734.40

Finding the Fourth Proportional to 21,893,891.20, 32,840,836.80 and 13,831,734.40

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Solution

The fourth proportional to 21,893,891.20, 32,840,836.80 and 13,831,734.40 is: 20,747,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893,891.20 : 32,840,836.80 = 13,831,734.40 : x
  2. Step 2: Convert to fraction form
    21,893,891.20/32,840,836.80 = 13,831,734.40/x
  3. Step 3: Cross multiply
    21,893,891.20x = 32,840,836.80 × 13,831,734.40
  4. Step 4: Simplify right side
    21,893,891.20x = 454,245,732,091,345.94
  5. Step 5: Solve for x
    x = 454,245,732,091,345.94/21,893,891.20
  6. Step 6: Final answer
    x = 20,747,601.60

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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.