Home / 20,611,974.30-30,917,961.45-7,148,802.30

Finding the Fourth Proportional to 20,611,974.30, 30,917,961.45 and 7,148,802.30

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Solution

The fourth proportional to 20,611,974.30, 30,917,961.45 and 7,148,802.30 is: 10,723,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611,974.30 : 30,917,961.45 = 7,148,802.30 : x
  2. Step 2: Convert to fraction form
    20,611,974.30/30,917,961.45 = 7,148,802.30/x
  3. Step 3: Cross multiply
    20,611,974.30x = 30,917,961.45 × 7,148,802.30
  4. Step 4: Simplify right side
    20,611,974.30x = 221,026,393,925,071.31
  5. Step 5: Solve for x
    x = 221,026,393,925,071.31/20,611,974.30
  6. Step 6: Final answer
    x = 10,723,203.45

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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.