Finding the Fourth Proportional to 20,697,027.84, 28,563,408 and 11,997,446.40
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Solution
The fourth proportional to 20,697,027.84, 28,563,408 and 11,997,446.40 is: 16,557,351.09
Step by Step Solution
- Step 1: Write the proportion equation
20,697,027.84 : 28,563,408 = 11,997,446.40 : x - Step 2: Convert to fraction form
20,697,027.84/28,563,408 = 11,997,446.40/x - Step 3: Cross multiply
20,697,027.84x = 28,563,408 × 11,997,446.40 - Step 4: Simplify right side
20,697,027.84x = 342,687,956,481,331.19 - Step 5: Solve for x
x = 342,687,956,481,331.19/20,697,027.84 - Step 6: Final answer
x = 16,557,351.09
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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.