Finding the Fourth Proportional to 13,920,777.28, 19,212,981.48 and 8,119,558.84
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Solution
The fourth proportional to 13,920,777.28, 19,212,981.48 and 8,119,558.84 is: 11,206,337.87
Step by Step Solution
- Step 1: Write the proportion equation
13,920,777.28 : 19,212,981.48 = 8,119,558.84 : x - Step 2: Convert to fraction form
13,920,777.28/19,212,981.48 = 8,119,558.84/x - Step 3: Cross multiply
13,920,777.28x = 19,212,981.48 × 8,119,558.84 - Step 4: Simplify right side
13,920,777.28x = 156,000,933,618,690.28 - Step 5: Solve for x
x = 156,000,933,618,690.28/13,920,777.28 - Step 6: Final answer
x = 11,206,337.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.