Finding the Fourth Proportional to 4,813,151.99, 7,219,740.29 and 1,218,919.32
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Solution
The fourth proportional to 4,813,151.99, 7,219,740.29 and 1,218,919.32 is: 1,828,382.10
Step by Step Solution
- Step 1: Write the proportion equation
4,813,151.99 : 7,219,740.29 = 1,218,919.32 : x - Step 2: Convert to fraction form
4,813,151.99/7,219,740.29 = 1,218,919.32/x - Step 3: Cross multiply
4,813,151.99x = 7,219,740.29 × 1,218,919.32 - Step 4: Simplify right side
4,813,151.99x = 8,800,280,918,768.81 - Step 5: Solve for x
x = 8,800,280,918,768.81/4,813,151.99 - Step 6: Final answer
x = 1,828,382.10
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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.