Finding the Fourth Proportional to 10,355,492.20, 15,533,230.09 and 2,782,457.95
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Solution
The fourth proportional to 10,355,492.20, 15,533,230.09 and 2,782,457.95 is: 4,173,684.72
Step by Step Solution
- Step 1: Write the proportion equation
10,355,492.20 : 15,533,230.09 = 2,782,457.95 : x - Step 2: Convert to fraction form
10,355,492.20/15,533,230.09 = 2,782,457.95/x - Step 3: Cross multiply
10,355,492.20x = 15,533,230.09 × 2,782,457.95 - Step 4: Simplify right side
10,355,492.20x = 43,220,559,553,099.72 - Step 5: Solve for x
x = 43,220,559,553,099.72/10,355,492.20 - Step 6: Final answer
x = 4,173,684.72
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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.