Finding the Fourth Proportional to 518,222,206.63, 715,146,678.98 and 283,273,797.79
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Solution
The fourth proportional to 518,222,206.63, 715,146,678.98 and 283,273,797.79 is: 390,917,859.44
Step by Step Solution
- Step 1: Write the proportion equation
518,222,206.63 : 715,146,678.98 = 283,273,797.79 : x - Step 2: Convert to fraction form
518,222,206.63/715,146,678.98 = 283,273,797.79/x - Step 3: Cross multiply
518,222,206.63x = 715,146,678.98 × 283,273,797.79 - Step 4: Simplify right side
518,222,206.63x = 202,582,315,731,570,592 - Step 5: Solve for x
x = 202,582,315,731,570,592/518,222,206.63 - Step 6: Final answer
x = 390,917,859.44
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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.