Finding the Fourth Proportional to 1,268,557,431.53, 1,902,908,864.36 and 335,856,043.19
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Solution
The fourth proportional to 1,268,557,431.53, 1,902,908,864.36 and 335,856,043.19 is: 503,803,316.95
Step by Step Solution
- Step 1: Write the proportion equation
1,268,557,431.53 : 1,902,908,864.36 = 335,856,043.19 : x - Step 2: Convert to fraction form
1,268,557,431.53/1,902,908,864.36 = 335,856,043.19/x - Step 3: Cross multiply
1,268,557,431.53x = 1,902,908,864.36 × 335,856,043.19 - Step 4: Simplify right side
1,268,557,431.53x = 639,103,441,740,722,944 - Step 5: Solve for x
x = 639,103,441,740,722,944/1,268,557,431.53 - Step 6: Final answer
x = 503,803,316.95
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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.