Finding the Fourth Proportional to 8,768,696.31, 13,060,581.02 and 8,375,263.99
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Solution
The fourth proportional to 8,768,696.31, 13,060,581.02 and 8,375,263.99 is: 12,474,581.17
Step by Step Solution
- Step 1: Write the proportion equation
8,768,696.31 : 13,060,581.02 = 8,375,263.99 : x - Step 2: Convert to fraction form
8,768,696.31/13,060,581.02 = 8,375,263.99/x - Step 3: Cross multiply
8,768,696.31x = 13,060,581.02 × 8,375,263.99 - Step 4: Simplify right side
8,768,696.31x = 109,385,813,909,273.78 - Step 5: Solve for x
x = 109,385,813,909,273.78/8,768,696.31 - Step 6: Final answer
x = 12,474,581.17
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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.