Finding the Fourth Proportional to 117,419,316.20, 176,128,974.30 and 71,502,813.80
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Solution
The fourth proportional to 117,419,316.20, 176,128,974.30 and 71,502,813.80 is: 107,254,220.70
Step by Step Solution
- Step 1: Write the proportion equation
117,419,316.20 : 176,128,974.30 = 71,502,813.80 : x - Step 2: Convert to fraction form
117,419,316.20/176,128,974.30 = 71,502,813.80/x - Step 3: Cross multiply
117,419,316.20x = 176,128,974.30 × 71,502,813.80 - Step 4: Simplify right side
117,419,316.20x = 12,593,717,254,157,886 - Step 5: Solve for x
x = 12,593,717,254,157,886/117,419,316.20 - Step 6: Final answer
x = 107,254,220.70
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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.