Home / 66,807,653.94-100,227,128.94-20,747,170.44

Finding the Fourth Proportional to 66,807,653.94, 100,227,128.94 and 20,747,170.44

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Solution

The fourth proportional to 66,807,653.94, 100,227,128.94 and 20,747,170.44 is: 31,125,615.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,807,653.94 : 100,227,128.94 = 20,747,170.44 : x
  2. Step 2: Convert to fraction form
    66,807,653.94/100,227,128.94 = 20,747,170.44/x
  3. Step 3: Cross multiply
    66,807,653.94x = 100,227,128.94 × 20,747,170.44
  4. Step 4: Simplify right side
    66,807,653.94x = 2,079,429,326,830,036.50
  5. Step 5: Solve for x
    x = 2,079,429,326,830,036.50/66,807,653.94
  6. Step 6: Final answer
    x = 31,125,615.17

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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.