Finding the Fourth Proportional to 12,112,845.14, 16,711,505.25 and 7,764,329.23
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Solution
The fourth proportional to 12,112,845.14, 16,711,505.25 and 7,764,329.23 is: 10,712,068.65
Step by Step Solution
- Step 1: Write the proportion equation
12,112,845.14 : 16,711,505.25 = 7,764,329.23 : x - Step 2: Convert to fraction form
12,112,845.14/16,711,505.25 = 7,764,329.23/x - Step 3: Cross multiply
12,112,845.14x = 16,711,505.25 × 7,764,329.23 - Step 4: Simplify right side
12,112,845.14x = 129,753,628,689,873.47 - Step 5: Solve for x
x = 129,753,628,689,873.47/12,112,845.14 - Step 6: Final answer
x = 10,712,068.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.