Finding the Fourth Proportional to 161,807,999.20, 242,711,998.80 and 54,102,623.20
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Solution
The fourth proportional to 161,807,999.20, 242,711,998.80 and 54,102,623.20 is: 81,153,934.80
Step by Step Solution
- Step 1: Write the proportion equation
161,807,999.20 : 242,711,998.80 = 54,102,623.20 : x - Step 2: Convert to fraction form
161,807,999.20/242,711,998.80 = 54,102,623.20/x - Step 3: Cross multiply
161,807,999.20x = 242,711,998.80 × 54,102,623.20 - Step 4: Simplify right side
161,807,999.20x = 13,131,355,817,195,254 - Step 5: Solve for x
x = 13,131,355,817,195,254/161,807,999.20 - Step 6: Final answer
x = 81,153,934.80
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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.