Finding the Fourth Proportional to 71,115,780.40, 106,673,670.60 and 53,199,876.40
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Solution
The fourth proportional to 71,115,780.40, 106,673,670.60 and 53,199,876.40 is: 79,799,814.60
Step by Step Solution
- Step 1: Write the proportion equation
71,115,780.40 : 106,673,670.60 = 53,199,876.40 : x - Step 2: Convert to fraction form
71,115,780.40/106,673,670.60 = 53,199,876.40/x - Step 3: Cross multiply
71,115,780.40x = 106,673,670.60 × 53,199,876.40 - Step 4: Simplify right side
71,115,780.40x = 5,675,026,091,054,313 - Step 5: Solve for x
x = 5,675,026,091,054,313/71,115,780.40 - Step 6: Final answer
x = 79,799,814.60
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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.