Home / 20,611,974.80-30,917,962.20-7,148,802.80

Finding the Fourth Proportional to 20,611,974.80, 30,917,962.20 and 7,148,802.80

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Solution

The fourth proportional to 20,611,974.80, 30,917,962.20 and 7,148,802.80 is: 10,723,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611,974.80 : 30,917,962.20 = 7,148,802.80 : x
  2. Step 2: Convert to fraction form
    20,611,974.80/30,917,962.20 = 7,148,802.80/x
  3. Step 3: Cross multiply
    20,611,974.80x = 30,917,962.20 × 7,148,802.80
  4. Step 4: Simplify right side
    20,611,974.80x = 221,026,414,745,654.16
  5. Step 5: Solve for x
    x = 221,026,414,745,654.16/20,611,974.80
  6. Step 6: Final answer
    x = 10,723,204.20

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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.