Finding the Fourth Proportional to 5,668,511.76, 7,820,077.07 and 3,602,420.05
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Solution
The fourth proportional to 5,668,511.76, 7,820,077.07 and 3,602,420.05 is: 4,969,770.49
Step by Step Solution
- Step 1: Write the proportion equation
5,668,511.76 : 7,820,077.07 = 3,602,420.05 : x - Step 2: Convert to fraction form
5,668,511.76/7,820,077.07 = 3,602,420.05/x - Step 3: Cross multiply
5,668,511.76x = 7,820,077.07 × 3,602,420.05 - Step 4: Simplify right side
5,668,511.76x = 28,171,202,429,513.25 - Step 5: Solve for x
x = 28,171,202,429,513.25/5,668,511.76 - Step 6: Final answer
x = 4,969,770.49
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1.5x scale
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.