Finding the Fourth Proportional to 818,473,243.20, 1,129,993,610.40 and 532,637,136.96
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Solution
The fourth proportional to 818,473,243.20, 1,129,993,610.40 and 532,637,136.96 is: 735,364,981.60
Step by Step Solution
- Step 1: Write the proportion equation
818,473,243.20 : 1,129,993,610.40 = 532,637,136.96 : x - Step 2: Convert to fraction form
818,473,243.20/1,129,993,610.40 = 532,637,136.96/x - Step 3: Cross multiply
818,473,243.20x = 1,129,993,610.40 × 532,637,136.96 - Step 4: Simplify right side
818,473,243.20x = 601,876,561,426,549,760 - Step 5: Solve for x
x = 601,876,561,426,549,760/818,473,243.20 - Step 6: Final answer
x = 735,364,981.60
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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.