Finding the Fourth Proportional to 486,042,430.48, 728,981,414.73 and 136,207,983.59
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Solution
The fourth proportional to 486,042,430.48, 728,981,414.73 and 136,207,983.59 is: 204,288,931.07
Step by Step Solution
- Step 1: Write the proportion equation
486,042,430.48 : 728,981,414.73 = 136,207,983.59 : x - Step 2: Convert to fraction form
486,042,430.48/728,981,414.73 = 136,207,983.59/x - Step 3: Cross multiply
486,042,430.48x = 728,981,414.73 × 136,207,983.59 - Step 4: Simplify right side
486,042,430.48x = 99,293,088,574,521,600 - Step 5: Solve for x
x = 99,293,088,574,521,600/486,042,430.48 - Step 6: Final answer
x = 204,288,931.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.