Finding the Fourth Proportional to 161,764,365.80, 242,646,548.70 and 89,960,781.80
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Solution
The fourth proportional to 161,764,365.80, 242,646,548.70 and 89,960,781.80 is: 134,941,172.70
Step by Step Solution
- Step 1: Write the proportion equation
161,764,365.80 : 242,646,548.70 = 89,960,781.80 : x - Step 2: Convert to fraction form
161,764,365.80/242,646,548.70 = 89,960,781.80/x - Step 3: Cross multiply
161,764,365.80x = 242,646,548.70 × 89,960,781.80 - Step 4: Simplify right side
161,764,365.80x = 21,828,673,222,123,772 - Step 5: Solve for x
x = 21,828,673,222,123,772/161,764,365.80 - Step 6: Final answer
x = 134,941,172.70
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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.