Finding the Fourth Proportional to 9,112,483.68, 12,578,391.90 and 5,246,545.65
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Solution
The fourth proportional to 9,112,483.68, 12,578,391.90 and 5,246,545.65 is: 7,242,054.92
Step by Step Solution
- Step 1: Write the proportion equation
9,112,483.68 : 12,578,391.90 = 5,246,545.65 : x - Step 2: Convert to fraction form
9,112,483.68/12,578,391.90 = 5,246,545.65/x - Step 3: Cross multiply
9,112,483.68x = 12,578,391.90 × 5,246,545.65 - Step 4: Simplify right side
9,112,483.68x = 65,993,107,306,940.24 - Step 5: Solve for x
x = 65,993,107,306,940.24/9,112,483.68 - Step 6: Final answer
x = 7,242,054.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.