Finding the Fourth Proportional to 210,029,531.80, 315,044,297.70 and 181,717,979.80
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Solution
The fourth proportional to 210,029,531.80, 315,044,297.70 and 181,717,979.80 is: 272,576,969.70
Step by Step Solution
- Step 1: Write the proportion equation
210,029,531.80 : 315,044,297.70 = 181,717,979.80 : x - Step 2: Convert to fraction form
210,029,531.80/315,044,297.70 = 181,717,979.80/x - Step 3: Cross multiply
210,029,531.80x = 315,044,297.70 × 181,717,979.80 - Step 4: Simplify right side
210,029,531.80x = 57,249,213,325,553,792 - Step 5: Solve for x
x = 57,249,213,325,553,792/210,029,531.80 - Step 6: Final answer
x = 272,576,969.70
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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.