Finding the Fourth Proportional to 12,357,068.40, 18,537,352.20 and 3,836,516.40
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Solution
The fourth proportional to 12,357,068.40, 18,537,352.20 and 3,836,516.40 is: 5,755,317.80
Step by Step Solution
- Step 1: Write the proportion equation
12,357,068.40 : 18,537,352.20 = 3,836,516.40 : x - Step 2: Convert to fraction form
12,357,068.40/18,537,352.20 = 3,836,516.40/x - Step 3: Cross multiply
12,357,068.40x = 18,537,352.20 × 3,836,516.40 - Step 4: Simplify right side
12,357,068.40x = 71,118,855,727,876.08 - Step 5: Solve for x
x = 71,118,855,727,876.08/12,357,068.40 - Step 6: Final answer
x = 5,755,317.80
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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.