Finding the Fourth Proportional to 288,029,142.99, 397,481,206.64 and 155,870,104.41
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Solution
The fourth proportional to 288,029,142.99, 397,481,206.64 and 155,870,104.41 is: 215,101,279.46
Step by Step Solution
- Step 1: Write the proportion equation
288,029,142.99 : 397,481,206.64 = 155,870,104.41 : x - Step 2: Convert to fraction form
288,029,142.99/397,481,206.64 = 155,870,104.41/x - Step 3: Cross multiply
288,029,142.99x = 397,481,206.64 × 155,870,104.41 - Step 4: Simplify right side
288,029,142.99x = 61,955,437,179,210,232 - Step 5: Solve for x
x = 61,955,437,179,210,232/288,029,142.99 - Step 6: Final answer
x = 215,101,279.46
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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.