Finding the Fourth Proportional to 66,391,405.80, 99,587,108.70 and 55,053,997.80
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Solution
The fourth proportional to 66,391,405.80, 99,587,108.70 and 55,053,997.80 is: 82,580,996.70
Step by Step Solution
- Step 1: Write the proportion equation
66,391,405.80 : 99,587,108.70 = 55,053,997.80 : x - Step 2: Convert to fraction form
66,391,405.80/99,587,108.70 = 55,053,997.80/x - Step 3: Cross multiply
66,391,405.80x = 99,587,108.70 × 55,053,997.80 - Step 4: Simplify right side
66,391,405.80x = 5,482,668,463,278,161 - Step 5: Solve for x
x = 5,482,668,463,278,161/66,391,405.80 - Step 6: Final answer
x = 82,580,996.70
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1.5x scale
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.