Finding the Fourth Proportional to 890,328,753,972.27, 1,329,497,643,290.40 and 727,102,642,136.40
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Solution
The fourth proportional to 890,328,753,972.27, 1,329,497,643,290.40 and 727,102,642,136.40 is: 1,085,757,642,710.79
Step by Step Solution
- Step 1: Write the proportion equation
890,328,753,972.27 : 1,329,497,643,290.40 = 727,102,642,136.40 : x - Step 2: Convert to fraction form
890,328,753,972.27/1,329,497,643,290.40 = 727,102,642,136.40/x - Step 3: Cross multiply
890,328,753,972.27x = 1,329,497,643,290.40 × 727,102,642,136.40 - Step 4: Simplify right side
890,328,753,972.27x = 966,681,249,150,566,825,721,856 - Step 5: Solve for x
x = 966,681,249,150,566,825,721,856/890,328,753,972.27 - Step 6: Final answer
x = 1,085,757,642,710.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.