Finding the Fourth Proportional to 145,883,525.12, 201,318,662.73 and 78,902,558.04
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Solution
The fourth proportional to 145,883,525.12, 201,318,662.73 and 78,902,558.04 is: 108,885,204.54
Step by Step Solution
- Step 1: Write the proportion equation
145,883,525.12 : 201,318,662.73 = 78,902,558.04 : x - Step 2: Convert to fraction form
145,883,525.12/201,318,662.73 = 78,902,558.04/x - Step 3: Cross multiply
145,883,525.12x = 201,318,662.73 × 78,902,558.04 - Step 4: Simplify right side
145,883,525.12x = 15,884,557,471,639,838 - Step 5: Solve for x
x = 15,884,557,471,639,838/145,883,525.12 - Step 6: Final answer
x = 108,885,204.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.