Finding the Fourth Proportional to 239,722,476.08, 330,818,147.88 and 135,304,948.40
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Solution
The fourth proportional to 239,722,476.08, 330,818,147.88 and 135,304,948.40 is: 186,721,467.09
Step by Step Solution
- Step 1: Write the proportion equation
239,722,476.08 : 330,818,147.88 = 135,304,948.40 : x - Step 2: Convert to fraction form
239,722,476.08/330,818,147.88 = 135,304,948.40/x - Step 3: Cross multiply
239,722,476.08x = 330,818,147.88 × 135,304,948.40 - Step 4: Simplify right side
239,722,476.08x = 44,761,332,428,686,968 - Step 5: Solve for x
x = 44,761,332,428,686,968/239,722,476.08 - Step 6: Final answer
x = 186,721,467.09
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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.