Finding the Fourth Proportional to 557,578,384.05, 769,459,703.21 and 306,708,476.10
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Solution
The fourth proportional to 557,578,384.05, 769,459,703.21 and 306,708,476.10 is: 423,258,540.39
Step by Step Solution
- Step 1: Write the proportion equation
557,578,384.05 : 769,459,703.21 = 306,708,476.10 : x - Step 2: Convert to fraction form
557,578,384.05/769,459,703.21 = 306,708,476.10/x - Step 3: Cross multiply
557,578,384.05x = 769,459,703.21 × 306,708,476.10 - Step 4: Simplify right side
557,578,384.05x = 235,999,812,988,623,872 - Step 5: Solve for x
x = 235,999,812,988,623,872/557,578,384.05 - Step 6: Final answer
x = 423,258,540.39
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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.