Finding the Fourth Proportional to 479,531,107.13, 661,752,919.82 and 259,514,533.13
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Solution
The fourth proportional to 479,531,107.13, 661,752,919.82 and 259,514,533.13 is: 358,130,051.38
Step by Step Solution
- Step 1: Write the proportion equation
479,531,107.13 : 661,752,919.82 = 259,514,533.13 : x - Step 2: Convert to fraction form
479,531,107.13/661,752,919.82 = 259,514,533.13/x - Step 3: Cross multiply
479,531,107.13x = 661,752,919.82 × 259,514,533.13 - Step 4: Simplify right side
479,531,107.13x = 171,734,500,034,501,632 - Step 5: Solve for x
x = 171,734,500,034,501,632/479,531,107.13 - Step 6: Final answer
x = 358,130,051.38
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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.