Finding the Fourth Proportional to 734,120,893.92, 1,013,113,560.60 and 399,577,243.68
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Solution
The fourth proportional to 734,120,893.92, 1,013,113,560.60 and 399,577,243.68 is: 551,431,143.61
Step by Step Solution
- Step 1: Write the proportion equation
734,120,893.92 : 1,013,113,560.60 = 399,577,243.68 : x - Step 2: Convert to fraction form
734,120,893.92/1,013,113,560.60 = 399,577,243.68/x - Step 3: Cross multiply
734,120,893.92x = 1,013,113,560.60 × 399,577,243.68 - Step 4: Simplify right side
734,120,893.92x = 404,817,124,079,378,688 - Step 5: Solve for x
x = 404,817,124,079,378,688/734,120,893.92 - Step 6: Final answer
x = 551,431,143.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.