Finding the Fourth Proportional to 20,620,110.84, 28,455,771.68 and 11,328,282.48
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Solution
The fourth proportional to 20,620,110.84, 28,455,771.68 and 11,328,282.48 is: 15,633,040.11
Step by Step Solution
- Step 1: Write the proportion equation
20,620,110.84 : 28,455,771.68 = 11,328,282.48 : x - Step 2: Convert to fraction form
20,620,110.84/28,455,771.68 = 11,328,282.48/x - Step 3: Cross multiply
20,620,110.84x = 28,455,771.68 × 11,328,282.48 - Step 4: Simplify right side
20,620,110.84x = 322,355,019,777,424.19 - Step 5: Solve for x
x = 322,355,019,777,424.19/20,620,110.84 - Step 6: Final answer
x = 15,633,040.11
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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.