Finding the Fourth Proportional to 941,009,990.70, 1,411,514,986.05 and 865,763,193.90
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Solution
The fourth proportional to 941,009,990.70, 1,411,514,986.05 and 865,763,193.90 is: 1,298,644,790.85
Step by Step Solution
- Step 1: Write the proportion equation
941,009,990.70 : 1,411,514,986.05 = 865,763,193.90 : x - Step 2: Convert to fraction form
941,009,990.70/1,411,514,986.05 = 865,763,193.90/x - Step 3: Cross multiply
941,009,990.70x = 1,411,514,986.05 × 865,763,193.90 - Step 4: Simplify right side
941,009,990.70x = 1,222,037,722,560,361,984 - Step 5: Solve for x
x = 1,222,037,722,560,361,984/941,009,990.70 - Step 6: Final answer
x = 1,298,644,790.85
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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.