Finding the Fourth Proportional to 479,531,079.13, 661,752,881.10 and 259,514,505.13
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Solution
The fourth proportional to 479,531,079.13, 661,752,881.10 and 259,514,505.13 is: 358,130,012.70
Step by Step Solution
- Step 1: Write the proportion equation
479,531,079.13 : 661,752,881.10 = 259,514,505.13 : x - Step 2: Convert to fraction form
479,531,079.13/661,752,881.10 = 259,514,505.13/x - Step 3: Cross multiply
479,531,079.13x = 661,752,881.10 × 259,514,505.13 - Step 4: Simplify right side
479,531,079.13x = 171,734,471,457,018,240 - Step 5: Solve for x
x = 171,734,471,457,018,240/479,531,079.13 - Step 6: Final answer
x = 358,130,012.70
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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.