Finding the Fourth Proportional to 479,531,076.63, 661,752,877.67 and 259,514,502.63
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Solution
The fourth proportional to 479,531,076.63, 661,752,877.67 and 259,514,502.63 is: 358,130,009.25
Step by Step Solution
- Step 1: Write the proportion equation
479,531,076.63 : 661,752,877.67 = 259,514,502.63 : x - Step 2: Convert to fraction form
479,531,076.63/661,752,877.67 = 259,514,502.63/x - Step 3: Cross multiply
479,531,076.63x = 661,752,877.67 × 259,514,502.63 - Step 4: Simplify right side
479,531,076.63x = 171,734,468,911,203,712 - Step 5: Solve for x
x = 171,734,468,911,203,712/479,531,076.63 - Step 6: Final answer
x = 358,130,009.25
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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.