Finding the Fourth Proportional to 10,363,991.61, 15,547,979.99 and 3,973,745.55
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Solution
The fourth proportional to 10,363,991.61, 15,547,979.99 and 3,973,745.55 is: 5,961,382.32
Step by Step Solution
- Step 1: Write the proportion equation
10,363,991.61 : 15,547,979.99 = 3,973,745.55 : x - Step 2: Convert to fraction form
10,363,991.61/15,547,979.99 = 3,973,745.55/x - Step 3: Cross multiply
10,363,991.61x = 15,547,979.99 × 3,973,745.55 - Step 4: Simplify right side
10,363,991.61x = 61,783,716,296,751.54 - Step 5: Solve for x
x = 61,783,716,296,751.54/10,363,991.61 - Step 6: Final answer
x = 5,961,382.32
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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.