Home / 21,067,297.50-29,072,870.58-11,409,505.50

Finding the Fourth Proportional to 21,067,297.50, 29,072,870.58 and 11,409,505.50

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Solution

The fourth proportional to 21,067,297.50, 29,072,870.58 and 11,409,505.50 is: 15,745,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067,297.50 : 29,072,870.58 = 11,409,505.50 : x
  2. Step 2: Convert to fraction form
    21,067,297.50/29,072,870.58 = 11,409,505.50/x
  3. Step 3: Cross multiply
    21,067,297.50x = 29,072,870.58 × 11,409,505.50
  4. Step 4: Simplify right side
    21,067,297.50x = 331,707,076,783,298.19
  5. Step 5: Solve for x
    x = 331,707,076,783,298.19/21,067,297.50
  6. Step 6: Final answer
    x = 15,745,117.61

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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.