Finding the Fourth Proportional to 288,005,461.08, 397,448,590.14 and 155,846,458.98
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Solution
The fourth proportional to 288,005,461.08, 397,448,590.14 and 155,846,458.98 is: 215,068,683.65
Step by Step Solution
- Step 1: Write the proportion equation
288,005,461.08 : 397,448,590.14 = 155,846,458.98 : x - Step 2: Convert to fraction form
288,005,461.08/397,448,590.14 = 155,846,458.98/x - Step 3: Cross multiply
288,005,461.08x = 397,448,590.14 × 155,846,458.98 - Step 4: Simplify right side
288,005,461.08x = 61,940,955,399,912,336 - Step 5: Solve for x
x = 61,940,955,399,912,336/288,005,461.08 - Step 6: Final answer
x = 215,068,683.65
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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.