Finding the Fourth Proportional to 12,900,583.66, 17,798,797.49 and 7,317,910.09
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Solution
The fourth proportional to 12,900,583.66, 17,798,797.49 and 7,317,910.09 is: 10,096,442.39
Step by Step Solution
- Step 1: Write the proportion equation
12,900,583.66 : 17,798,797.49 = 7,317,910.09 : x - Step 2: Convert to fraction form
12,900,583.66/17,798,797.49 = 7,317,910.09/x - Step 3: Cross multiply
12,900,583.66x = 17,798,797.49 × 7,317,910.09 - Step 4: Simplify right side
12,900,583.66x = 130,249,999,688,293.30 - Step 5: Solve for x
x = 130,249,999,688,293.30/12,900,583.66 - Step 6: Final answer
x = 10,096,442.39
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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.