Finding the Fourth Proportional to 315,576,743.80, 473,365,115.70 and 315,576,743.80
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Solution
The fourth proportional to 315,576,743.80, 473,365,115.70 and 315,576,743.80 is: 473,365,115.70
Step by Step Solution
- Step 1: Write the proportion equation
315,576,743.80 : 473,365,115.70 = 315,576,743.80 : x - Step 2: Convert to fraction form
315,576,743.80/473,365,115.70 = 315,576,743.80/x - Step 3: Cross multiply
315,576,743.80x = 473,365,115.70 × 315,576,743.80 - Step 4: Simplify right side
315,576,743.80x = 149,383,021,841,116,256 - Step 5: Solve for x
x = 149,383,021,841,116,256/315,576,743.80 - Step 6: Final answer
x = 473,365,115.70
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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.