Finding the Fourth Proportional to 79,290,146.70, 118,935,220.05 and 55,103,676.30
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Solution
The fourth proportional to 79,290,146.70, 118,935,220.05 and 55,103,676.30 is: 82,655,514.45
Step by Step Solution
- Step 1: Write the proportion equation
79,290,146.70 : 118,935,220.05 = 55,103,676.30 : x - Step 2: Convert to fraction form
79,290,146.70/118,935,220.05 = 55,103,676.30/x - Step 3: Cross multiply
79,290,146.70x = 118,935,220.05 × 55,103,676.30 - Step 4: Simplify right side
79,290,146.70x = 6,553,767,866,304,469 - Step 5: Solve for x
x = 6,553,767,866,304,469/79,290,146.70 - Step 6: Final answer
x = 82,655,514.45
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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.