Finding the Fourth Proportional to 19,778,768.20, 29,644,532.70 and 8,264,213.20
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Solution
The fourth proportional to 19,778,768.20, 29,644,532.70 and 8,264,213.20 is: 12,386,450.76
Step by Step Solution
- Step 1: Write the proportion equation
19,778,768.20 : 29,644,532.70 = 8,264,213.20 : x - Step 2: Convert to fraction form
19,778,768.20/29,644,532.70 = 8,264,213.20/x - Step 3: Cross multiply
19,778,768.20x = 29,644,532.70 × 8,264,213.20 - Step 4: Simplify right side
19,778,768.20x = 244,988,738,447,171.62 - Step 5: Solve for x
x = 244,988,738,447,171.62/19,778,768.20 - Step 6: Final answer
x = 12,386,450.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.