Finding the Fourth Proportional to 5,158,012.18, 7,118,130.49 and 2,835,119.48
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Solution
The fourth proportional to 5,158,012.18, 7,118,130.49 and 2,835,119.48 is: 3,912,505.38
Step by Step Solution
- Step 1: Write the proportion equation
5,158,012.18 : 7,118,130.49 = 2,835,119.48 : x - Step 2: Convert to fraction form
5,158,012.18/7,118,130.49 = 2,835,119.48/x - Step 3: Cross multiply
5,158,012.18x = 7,118,130.49 × 2,835,119.48 - Step 4: Simplify right side
5,158,012.18x = 20,180,750,413,380.95 - Step 5: Solve for x
x = 20,180,750,413,380.95/5,158,012.18 - Step 6: Final answer
x = 3,912,505.38
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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.