Finding the Fourth Proportional to 218,962,907.65, 302,136,308.56 and 132,988,708.18
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Solution
The fourth proportional to 218,962,907.65, 302,136,308.56 and 132,988,708.18 is: 183,504,675.75
Step by Step Solution
- Step 1: Write the proportion equation
218,962,907.65 : 302,136,308.56 = 132,988,708.18 : x - Step 2: Convert to fraction form
218,962,907.65/302,136,308.56 = 132,988,708.18/x - Step 3: Cross multiply
218,962,907.65x = 302,136,308.56 × 132,988,708.18 - Step 4: Simplify right side
218,962,907.65x = 40,180,717,369,668,280 - Step 5: Solve for x
x = 40,180,717,369,668,280/218,962,907.65 - Step 6: Final answer
x = 183,504,675.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.