Home / 30,611,375.85-42,242,103.93-19,008,690.42

Finding the Fourth Proportional to 30,611,375.85, 42,242,103.93 and 19,008,690.42

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Solution

The fourth proportional to 30,611,375.85, 42,242,103.93 and 19,008,690.42 is: 26,231,002.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611,375.85 : 42,242,103.93 = 19,008,690.42 : x
  2. Step 2: Convert to fraction form
    30,611,375.85/42,242,103.93 = 19,008,690.42/x
  3. Step 3: Cross multiply
    30,611,375.85x = 42,242,103.93 × 19,008,690.42
  4. Step 4: Simplify right side
    30,611,375.85x = 802,967,076,294,835.38
  5. Step 5: Solve for x
    x = 802,967,076,294,835.38/30,611,375.85
  6. Step 6: Final answer
    x = 26,231,002.49

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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.