Finding the Fourth Proportional to 518,222,207.63, 715,146,680.36 and 283,273,798.79
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Solution
The fourth proportional to 518,222,207.63, 715,146,680.36 and 283,273,798.79 is: 390,917,860.82
Step by Step Solution
- Step 1: Write the proportion equation
518,222,207.63 : 715,146,680.36 = 283,273,798.79 : x - Step 2: Convert to fraction form
518,222,207.63/715,146,680.36 = 283,273,798.79/x - Step 3: Cross multiply
518,222,207.63x = 715,146,680.36 × 283,273,798.79 - Step 4: Simplify right side
518,222,207.63x = 202,582,316,837,635,104 - Step 5: Solve for x
x = 202,582,316,837,635,104/518,222,207.63 - Step 6: Final answer
x = 390,917,860.82
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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.