Finding the Fourth Proportional to 7,281,513.81, 10,048,730.19 and 3,973,988.63
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Solution
The fourth proportional to 7,281,513.81, 10,048,730.19 and 3,973,988.63 is: 5,484,235.91
Step by Step Solution
- Step 1: Write the proportion equation
7,281,513.81 : 10,048,730.19 = 3,973,988.63 : x - Step 2: Convert to fraction form
7,281,513.81/10,048,730.19 = 3,973,988.63/x - Step 3: Cross multiply
7,281,513.81x = 10,048,730.19 × 3,973,988.63 - Step 4: Simplify right side
7,281,513.81x = 39,933,539,531,217.10 - Step 5: Solve for x
x = 39,933,539,531,217.10/7,281,513.81 - Step 6: Final answer
x = 5,484,235.91
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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.