Finding the Fourth Proportional to 208,209,582.41, 287,329,226.82 and 115,396,068.96
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Solution
The fourth proportional to 208,209,582.41, 287,329,226.82 and 115,396,068.96 is: 159,246,576.88
Step by Step Solution
- Step 1: Write the proportion equation
208,209,582.41 : 287,329,226.82 = 115,396,068.96 : x - Step 2: Convert to fraction form
208,209,582.41/287,329,226.82 = 115,396,068.96/x - Step 3: Cross multiply
208,209,582.41x = 287,329,226.82 × 115,396,068.96 - Step 4: Simplify right side
208,209,582.41x = 33,156,663,272,344,200 - Step 5: Solve for x
x = 33,156,663,272,344,200/208,209,582.41 - Step 6: Final answer
x = 159,246,576.88
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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.