Finding the Fourth Proportional to 621,110,549.70, 930,874,567.95 and 330,117,077.70
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Solution
The fourth proportional to 621,110,549.70, 930,874,567.95 and 330,117,077.70 is: 494,755,067.72
Step by Step Solution
- Step 1: Write the proportion equation
621,110,549.70 : 930,874,567.95 = 330,117,077.70 : x - Step 2: Convert to fraction form
621,110,549.70/930,874,567.95 = 330,117,077.70/x - Step 3: Cross multiply
621,110,549.70x = 930,874,567.95 × 330,117,077.70 - Step 4: Simplify right side
621,110,549.70x = 307,297,592,076,904,064 - Step 5: Solve for x
x = 307,297,592,076,904,064/621,110,549.70 - Step 6: Final answer
x = 494,755,067.72
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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.