Finding the Fourth Proportional to 557,457,637.92, 769,073,810.69 and 319,175,474.81
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Solution
The fourth proportional to 557,457,637.92, 769,073,810.69 and 319,175,474.81 is: 440,337,492.92
Step by Step Solution
- Step 1: Write the proportion equation
557,457,637.92 : 769,073,810.69 = 319,175,474.81 : x - Step 2: Convert to fraction form
557,457,637.92/769,073,810.69 = 319,175,474.81/x - Step 3: Cross multiply
557,457,637.92x = 769,073,810.69 × 319,175,474.81 - Step 4: Simplify right side
557,457,637.92x = 245,469,498,690,753,376 - Step 5: Solve for x
x = 245,469,498,690,753,376/557,457,637.92 - Step 6: Final answer
x = 440,337,492.92
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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.