Home / 20,603,015.84-28,432,179.96-12,347,873.12

Finding the Fourth Proportional to 20,603,015.84, 28,432,179.96 and 12,347,873.12

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Solution

The fourth proportional to 20,603,015.84, 28,432,179.96 and 12,347,873.12 is: 17,040,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603,015.84 : 28,432,179.96 = 12,347,873.12 : x
  2. Step 2: Convert to fraction form
    20,603,015.84/28,432,179.96 = 12,347,873.12/x
  3. Step 3: Cross multiply
    20,603,015.84x = 28,432,179.96 × 12,347,873.12
  4. Step 4: Simplify right side
    20,603,015.84x = 351,076,950,671,086.69
  5. Step 5: Solve for x
    x = 351,076,950,671,086.69/20,603,015.84
  6. Step 6: Final answer
    x = 17,040,075.75

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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.