Finding the Fourth Proportional to 99,854,531.20, 149,781,796.80 and 48,769,321.60
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Solution
The fourth proportional to 99,854,531.20, 149,781,796.80 and 48,769,321.60 is: 73,153,982.40
Step by Step Solution
- Step 1: Write the proportion equation
99,854,531.20 : 149,781,796.80 = 48,769,321.60 : x - Step 2: Convert to fraction form
99,854,531.20/149,781,796.80 = 48,769,321.60/x - Step 3: Cross multiply
99,854,531.20x = 149,781,796.80 × 48,769,321.60 - Step 4: Simplify right side
99,854,531.20x = 7,304,756,617,965,052 - Step 5: Solve for x
x = 7,304,756,617,965,052/99,854,531.20 - Step 6: Final answer
x = 73,153,982.40
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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.