Finding the Fourth Proportional to 68,116,696.30, 102,163,992.81 and 19,583,492.14
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Solution
The fourth proportional to 68,116,696.30, 102,163,992.81 and 19,583,492.14 is: 29,372,060.87
Step by Step Solution
- Step 1: Write the proportion equation
68,116,696.30 : 102,163,992.81 = 19,583,492.14 : x - Step 2: Convert to fraction form
68,116,696.30/102,163,992.81 = 19,583,492.14/x - Step 3: Cross multiply
68,116,696.30x = 102,163,992.81 × 19,583,492.14 - Step 4: Simplify right side
68,116,696.30x = 2,000,727,750,185,651.50 - Step 5: Solve for x
x = 2,000,727,750,185,651.50/68,116,696.30 - Step 6: Final answer
x = 29,372,060.87
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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.