Finding the Fourth Proportional to 776,894,717.76, 1,072,102,197.60 and 424,463,138.88
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Solution
The fourth proportional to 776,894,717.76, 1,072,102,197.60 and 424,463,138.88 is: 585,752,295.12
Step by Step Solution
- Step 1: Write the proportion equation
776,894,717.76 : 1,072,102,197.60 = 424,463,138.88 : x - Step 2: Convert to fraction form
776,894,717.76/1,072,102,197.60 = 424,463,138.88/x - Step 3: Cross multiply
776,894,717.76x = 1,072,102,197.60 × 424,463,138.88 - Step 4: Simplify right side
776,894,717.76x = 455,067,863,993,441,984 - Step 5: Solve for x
x = 455,067,863,993,441,984/776,894,717.76 - Step 6: Final answer
x = 585,752,295.12
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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.