Home / 21,012,942.80-31,494,919.80-9,654,539.60

Finding the Fourth Proportional to 21,012,942.80, 31,494,919.80 and 9,654,539.60

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Solution

The fourth proportional to 21,012,942.80, 31,494,919.80 and 9,654,539.60 is: 14,470,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012,942.80 : 31,494,919.80 = 9,654,539.60 : x
  2. Step 2: Convert to fraction form
    21,012,942.80/31,494,919.80 = 9,654,539.60/x
  3. Step 3: Cross multiply
    21,012,942.80x = 31,494,919.80 × 9,654,539.60
  4. Step 4: Simplify right side
    21,012,942.80x = 304,068,950,407,924.06
  5. Step 5: Solve for x
    x = 304,068,950,407,924.06/21,012,942.80
  6. Step 6: Final answer
    x = 14,470,555.28

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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.