Finding the Fourth Proportional to 70,758,893.20, 106,138,933.96 and 19,644,897.84
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Solution
The fourth proportional to 70,758,893.20, 106,138,933.96 and 19,644,897.84 is: 29,467,511.72
Step by Step Solution
- Step 1: Write the proportion equation
70,758,893.20 : 106,138,933.96 = 19,644,897.84 : x - Step 2: Convert to fraction form
70,758,893.20/106,138,933.96 = 19,644,897.84/x - Step 3: Cross multiply
70,758,893.20x = 106,138,933.96 × 19,644,897.84 - Step 4: Simplify right side
70,758,893.20x = 2,085,088,514,490,706.50 - Step 5: Solve for x
x = 2,085,088,514,490,706.50/70,758,893.20 - Step 6: Final answer
x = 29,467,511.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.