Finding the Fourth Proportional to 239,169,989.40, 358,754,984.10 and 218,006,827.80
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Solution
The fourth proportional to 239,169,989.40, 358,754,984.10 and 218,006,827.80 is: 327,010,241.70
Step by Step Solution
- Step 1: Write the proportion equation
239,169,989.40 : 358,754,984.10 = 218,006,827.80 : x - Step 2: Convert to fraction form
239,169,989.40/358,754,984.10 = 218,006,827.80/x - Step 3: Cross multiply
239,169,989.40x = 358,754,984.10 × 218,006,827.80 - Step 4: Simplify right side
239,169,989.40x = 78,211,036,041,080,448 - Step 5: Solve for x
x = 78,211,036,041,080,448/239,169,989.40 - Step 6: Final answer
x = 327,010,241.70
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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.