Finding the Fourth Proportional to 193,389,717.20, 290,084,575.80 and 155,125,965.20
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Solution
The fourth proportional to 193,389,717.20, 290,084,575.80 and 155,125,965.20 is: 232,688,947.80
Step by Step Solution
- Step 1: Write the proportion equation
193,389,717.20 : 290,084,575.80 = 155,125,965.20 : x - Step 2: Convert to fraction form
193,389,717.20/290,084,575.80 = 155,125,965.20/x - Step 3: Cross multiply
193,389,717.20x = 290,084,575.80 × 155,125,965.20 - Step 4: Simplify right side
193,389,717.20x = 44,999,649,810,607,560 - Step 5: Solve for x
x = 44,999,649,810,607,560/193,389,717.20 - Step 6: Final answer
x = 232,688,947.80
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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.