Finding the Fourth Proportional to 8,696,078.24, 12,985,557.26 and 7,101,803.84
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Solution
The fourth proportional to 8,696,078.24, 12,985,557.26 and 7,101,803.84 is: 10,604,881.63
Step by Step Solution
- Step 1: Write the proportion equation
8,696,078.24 : 12,985,557.26 = 7,101,803.84 : x - Step 2: Convert to fraction form
8,696,078.24/12,985,557.26 = 7,101,803.84/x - Step 3: Cross multiply
8,696,078.24x = 12,985,557.26 × 7,101,803.84 - Step 4: Simplify right side
8,696,078.24x = 92,220,880,313,171.08 - Step 5: Solve for x
x = 92,220,880,313,171.08/8,696,078.24 - Step 6: Final answer
x = 10,604,881.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.