Finding the Fourth Proportional to 177,121,102.20, 265,731,419.70 and 86,247,655.80
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Solution
The fourth proportional to 177,121,102.20, 265,731,419.70 and 86,247,655.80 is: 129,395,717.04
Step by Step Solution
- Step 1: Write the proportion equation
177,121,102.20 : 265,731,419.70 = 86,247,655.80 : x - Step 2: Convert to fraction form
177,121,102.20/265,731,419.70 = 86,247,655.80/x - Step 3: Cross multiply
177,121,102.20x = 265,731,419.70 × 86,247,655.80 - Step 4: Simplify right side
177,121,102.20x = 22,918,712,021,530,936 - Step 5: Solve for x
x = 22,918,712,021,530,936/177,121,102.20 - Step 6: Final answer
x = 129,395,717.04
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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.