Finding the Fourth Proportional to 752,970,585.79, 1,039,124,642.25 and 418,457,207.26
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Solution
The fourth proportional to 752,970,585.79, 1,039,124,642.25 and 418,457,207.26 is: 577,484,969.53
Step by Step Solution
- Step 1: Write the proportion equation
752,970,585.79 : 1,039,124,642.25 = 418,457,207.26 : x - Step 2: Convert to fraction form
752,970,585.79/1,039,124,642.25 = 418,457,207.26/x - Step 3: Cross multiply
752,970,585.79x = 1,039,124,642.25 × 418,457,207.26 - Step 4: Simplify right side
752,970,585.79x = 434,829,195,790,981,568 - Step 5: Solve for x
x = 434,829,195,790,981,568/752,970,585.79 - Step 6: Final answer
x = 577,484,969.53
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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.