Finding the Fourth Proportional to 7,112,639.05, 10,668,959.03 and 1,721,289.98
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Solution
The fourth proportional to 7,112,639.05, 10,668,959.03 and 1,721,289.98 is: 2,581,935.08
Step by Step Solution
- Step 1: Write the proportion equation
7,112,639.05 : 10,668,959.03 = 1,721,289.98 : x - Step 2: Convert to fraction form
7,112,639.05/10,668,959.03 = 1,721,289.98/x - Step 3: Cross multiply
7,112,639.05x = 10,668,959.03 × 1,721,289.98 - Step 4: Simplify right side
7,112,639.05x = 18,364,372,275,369.52 - Step 5: Solve for x
x = 18,364,372,275,369.52/7,112,639.05 - Step 6: Final answer
x = 2,581,935.08
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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.