Finding the Fourth Proportional to 7,913,974.25, 11,804,423.62 and 7,187,450.12
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Solution
The fourth proportional to 7,913,974.25, 11,804,423.62 and 7,187,450.12 is: 10,720,745.76
Step by Step Solution
- Step 1: Write the proportion equation
7,913,974.25 : 11,804,423.62 = 7,187,450.12 : x - Step 2: Convert to fraction form
7,913,974.25/11,804,423.62 = 7,187,450.12/x - Step 3: Cross multiply
7,913,974.25x = 11,804,423.62 × 7,187,450.12 - Step 4: Simplify right side
7,913,974.25x = 84,843,705,873,632.62 - Step 5: Solve for x
x = 84,843,705,873,632.62/7,913,974.25 - Step 6: Final answer
x = 10,720,745.76
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.