Finding the Fourth Proportional to 208,086,934.47, 287,159,869.68 and 124,455,063.63
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Solution
The fourth proportional to 208,086,934.47, 287,159,869.68 and 124,455,063.63 is: 171,747,928.07
Step by Step Solution
- Step 1: Write the proportion equation
208,086,934.47 : 287,159,869.68 = 124,455,063.63 : x - Step 2: Convert to fraction form
208,086,934.47/287,159,869.68 = 124,455,063.63/x - Step 3: Cross multiply
208,086,934.47x = 287,159,869.68 × 124,455,063.63 - Step 4: Simplify right side
208,086,934.47x = 35,738,499,853,006,908 - Step 5: Solve for x
x = 35,738,499,853,006,908/208,086,934.47 - Step 6: Final answer
x = 171,747,928.07
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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.