Finding the Fourth Proportional to 66,434,451.80, 99,651,677.70 and 18,565,395.80
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Solution
The fourth proportional to 66,434,451.80, 99,651,677.70 and 18,565,395.80 is: 27,848,093.70
Step by Step Solution
- Step 1: Write the proportion equation
66,434,451.80 : 99,651,677.70 = 18,565,395.80 : x - Step 2: Convert to fraction form
66,434,451.80/99,651,677.70 = 18,565,395.80/x - Step 3: Cross multiply
66,434,451.80x = 99,651,677.70 × 18,565,395.80 - Step 4: Simplify right side
66,434,451.80x = 1,850,072,838,634,533.75 - Step 5: Solve for x
x = 1,850,072,838,634,533.75/66,434,451.80 - Step 6: Final answer
x = 27,848,093.70
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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.