Finding the Fourth Proportional to 139,684,171.05, 192,733,754.99 and 84,693,543.21
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Solution
The fourth proportional to 139,684,171.05, 192,733,754.99 and 84,693,543.21 is: 116,858,656.81
Step by Step Solution
- Step 1: Write the proportion equation
139,684,171.05 : 192,733,754.99 = 84,693,543.21 : x - Step 2: Convert to fraction form
139,684,171.05/192,733,754.99 = 84,693,543.21/x - Step 3: Cross multiply
139,684,171.05x = 192,733,754.99 × 84,693,543.21 - Step 4: Simplify right side
139,684,171.05x = 16,323,304,606,271,118 - Step 5: Solve for x
x = 16,323,304,606,271,118/139,684,171.05 - Step 6: Final answer
x = 116,858,656.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.