Finding the Fourth Proportional to 660,705,481.94, 988,902,536.99 and 485,782,136.06
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Solution
The fourth proportional to 660,705,481.94, 988,902,536.99 and 485,782,136.06 is: 727,088,241.13
Step by Step Solution
- Step 1: Write the proportion equation
660,705,481.94 : 988,902,536.99 = 485,782,136.06 : x - Step 2: Convert to fraction form
660,705,481.94/988,902,536.99 = 485,782,136.06/x - Step 3: Cross multiply
660,705,481.94x = 988,902,536.99 × 485,782,136.06 - Step 4: Simplify right side
660,705,481.94x = 480,391,186,766,781,952 - Step 5: Solve for x
x = 480,391,186,766,781,952/660,705,481.94 - Step 6: Final answer
x = 727,088,241.13
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.