Home / 15,919,010.80-21,968,309.30-9,043,870.12

Finding the Fourth Proportional to 15,919,010.80, 21,968,309.30 and 9,043,870.12

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Solution

The fourth proportional to 15,919,010.80, 21,968,309.30 and 9,043,870.12 is: 12,480,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919,010.80 : 21,968,309.30 = 9,043,870.12 : x
  2. Step 2: Convert to fraction form
    15,919,010.80/21,968,309.30 = 9,043,870.12/x
  3. Step 3: Cross multiply
    15,919,010.80x = 21,968,309.30 × 9,043,870.12
  4. Step 4: Simplify right side
    15,919,010.80x = 198,678,535,965,048
  5. Step 5: Solve for x
    x = 198,678,535,965,048/15,919,010.80
  6. Step 6: Final answer
    x = 12,480,583.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.