Finding the Fourth Proportional to 128,317,405.28, 192,399,242.74 and 40,841,137.15
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Solution
The fourth proportional to 128,317,405.28, 192,399,242.74 and 40,841,137.15 is: 61,237,240.91
Step by Step Solution
- Step 1: Write the proportion equation
128,317,405.28 : 192,399,242.74 = 40,841,137.15 : x - Step 2: Convert to fraction form
128,317,405.28/192,399,242.74 = 40,841,137.15/x - Step 3: Cross multiply
128,317,405.28x = 192,399,242.74 × 40,841,137.15 - Step 4: Simplify right side
128,317,405.28x = 7,857,803,859,717,382 - Step 5: Solve for x
x = 7,857,803,859,717,382/128,317,405.28 - Step 6: Final answer
x = 61,237,240.91
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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.