Finding the Fourth Proportional to 272,169,264.70, 408,253,897.05 and 99,588,720.70
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Solution
The fourth proportional to 272,169,264.70, 408,253,897.05 and 99,588,720.70 is: 149,383,081.05
Step by Step Solution
- Step 1: Write the proportion equation
272,169,264.70 : 408,253,897.05 = 99,588,720.70 : x - Step 2: Convert to fraction form
272,169,264.70/408,253,897.05 = 99,588,720.70/x - Step 3: Cross multiply
272,169,264.70x = 408,253,897.05 × 99,588,720.70 - Step 4: Simplify right side
272,169,264.70x = 40,657,483,327,999,008 - Step 5: Solve for x
x = 40,657,483,327,999,008/272,169,264.70 - Step 6: Final answer
x = 149,383,081.05
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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.