Finding the Fourth Proportional to 296,790,071.36, 445,188,893.18 and 78,438,526.07
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Solution
The fourth proportional to 296,790,071.36, 445,188,893.18 and 78,438,526.07 is: 117,658,789.74
Step by Step Solution
- Step 1: Write the proportion equation
296,790,071.36 : 445,188,893.18 = 78,438,526.07 : x - Step 2: Convert to fraction form
296,790,071.36/445,188,893.18 = 78,438,526.07/x - Step 3: Cross multiply
296,790,071.36x = 445,188,893.18 × 78,438,526.07 - Step 4: Simplify right side
296,790,071.36x = 34,919,960,601,155,736 - Step 5: Solve for x
x = 34,919,960,601,155,736/296,790,071.36 - Step 6: Final answer
x = 117,658,789.74
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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.