Finding the Fourth Proportional to 10,381,201.70, 15,567,136.95 and 3,989,329.70
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Solution
The fourth proportional to 10,381,201.70, 15,567,136.95 and 3,989,329.70 is: 5,982,201.63
Step by Step Solution
- Step 1: Write the proportion equation
10,381,201.70 : 15,567,136.95 = 3,989,329.70 : x - Step 2: Convert to fraction form
10,381,201.70/15,567,136.95 = 3,989,329.70/x - Step 3: Cross multiply
10,381,201.70x = 15,567,136.95 × 3,989,329.70 - Step 4: Simplify right side
10,381,201.70x = 62,102,441,778,602.41 - Step 5: Solve for x
x = 62,102,441,778,602.41/10,381,201.70 - Step 6: Final answer
x = 5,982,201.63
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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.