Finding the Fourth Proportional to 66,828,142.42, 100,242,299.49 and 18,306,422.98
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Solution
The fourth proportional to 66,828,142.42, 100,242,299.49 and 18,306,422.98 is: 27,459,657.99
Step by Step Solution
- Step 1: Write the proportion equation
66,828,142.42 : 100,242,299.49 = 18,306,422.98 : x - Step 2: Convert to fraction form
66,828,142.42/100,242,299.49 = 18,306,422.98/x - Step 3: Cross multiply
66,828,142.42x = 100,242,299.49 × 18,306,422.98 - Step 4: Simplify right side
66,828,142.42x = 1,835,077,934,951,778.25 - Step 5: Solve for x
x = 1,835,077,934,951,778.25/66,828,142.42 - Step 6: Final answer
x = 27,459,657.99
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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.