Finding the Fourth Proportional to 212,980,651.80, 318,904,107.30 and 135,886,277.40
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Solution
The fourth proportional to 212,980,651.80, 318,904,107.30 and 135,886,277.40 is: 203,467,740.48
Step by Step Solution
- Step 1: Write the proportion equation
212,980,651.80 : 318,904,107.30 = 135,886,277.40 : x - Step 2: Convert to fraction form
212,980,651.80/318,904,107.30 = 135,886,277.40/x - Step 3: Cross multiply
212,980,651.80x = 318,904,107.30 × 135,886,277.40 - Step 4: Simplify right side
212,980,651.80x = 43,334,691,988,567,168 - Step 5: Solve for x
x = 43,334,691,988,567,168/212,980,651.80 - Step 6: Final answer
x = 203,467,740.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.