Home / 21,012,959.80-31,494,945.30-9,654,556.60

Finding the Fourth Proportional to 21,012,959.80, 31,494,945.30 and 9,654,556.60

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Solution

The fourth proportional to 21,012,959.80, 31,494,945.30 and 9,654,556.60 is: 14,470,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012,959.80 : 31,494,945.30 = 9,654,556.60 : x
  2. Step 2: Convert to fraction form
    21,012,959.80/31,494,945.30 = 9,654,556.60/x
  3. Step 3: Cross multiply
    21,012,959.80x = 31,494,945.30 × 9,654,556.60
  4. Step 4: Simplify right side
    21,012,959.80x = 304,069,732,012,754
  5. Step 5: Solve for x
    x = 304,069,732,012,754/21,012,959.80
  6. Step 6: Final answer
    x = 14,470,580.77

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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.