Finding the Fourth Proportional to 515,953,249.84, 712,079,583.12 and 293,006,546.24
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Solution
The fourth proportional to 515,953,249.84, 712,079,583.12 and 293,006,546.24 is: 404,385,434.85
Step by Step Solution
- Step 1: Write the proportion equation
515,953,249.84 : 712,079,583.12 = 293,006,546.24 : x - Step 2: Convert to fraction form
515,953,249.84/712,079,583.12 = 293,006,546.24/x - Step 3: Cross multiply
515,953,249.84x = 712,079,583.12 × 293,006,546.24 - Step 4: Simplify right side
515,953,249.84x = 208,643,979,298,010,208 - Step 5: Solve for x
x = 208,643,979,298,010,208/515,953,249.84 - Step 6: Final answer
x = 404,385,434.85
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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.