Finding the Fourth Proportional to 19,401,280.80, 29,093,914.08 and 6,622,815.84
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Solution
The fourth proportional to 19,401,280.80, 29,093,914.08 and 6,622,815.84 is: 9,931,490.45
Step by Step Solution
- Step 1: Write the proportion equation
19,401,280.80 : 29,093,914.08 = 6,622,815.84 : x - Step 2: Convert to fraction form
19,401,280.80/29,093,914.08 = 6,622,815.84/x - Step 3: Cross multiply
19,401,280.80x = 29,093,914.08 × 6,622,815.84 - Step 4: Simplify right side
19,401,280.80x = 192,683,635,016,623 - Step 5: Solve for x
x = 192,683,635,016,623/19,401,280.80 - Step 6: Final answer
x = 9,931,490.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.