Finding the Fourth Proportional to 5,638,678.95, 7,781,380.25 and 3,060,359.70
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Solution
The fourth proportional to 5,638,678.95, 7,781,380.25 and 3,060,359.70 is: 4,223,298.17
Step by Step Solution
- Step 1: Write the proportion equation
5,638,678.95 : 7,781,380.25 = 3,060,359.70 : x - Step 2: Convert to fraction form
5,638,678.95/7,781,380.25 = 3,060,359.70/x - Step 3: Cross multiply
5,638,678.95x = 7,781,380.25 × 3,060,359.70 - Step 4: Simplify right side
5,638,678.95x = 23,813,822,512,174.13 - Step 5: Solve for x
x = 23,813,822,512,174.13/5,638,678.95 - Step 6: Final answer
x = 4,223,298.17
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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.