Finding the Fourth Proportional to 557,455,415.68, 769,331,565.12 and 334,445,489.92
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Solution
The fourth proportional to 557,455,415.68, 769,331,565.12 and 334,445,489.92 is: 461,560,628.83
Step by Step Solution
- Step 1: Write the proportion equation
557,455,415.68 : 769,331,565.12 = 334,445,489.92 : x - Step 2: Convert to fraction form
557,455,415.68/769,331,565.12 = 334,445,489.92/x - Step 3: Cross multiply
557,455,415.68x = 769,331,565.12 × 334,445,489.92 - Step 4: Simplify right side
557,455,415.68x = 257,299,472,207,478,784 - Step 5: Solve for x
x = 257,299,472,207,478,784/557,455,415.68 - Step 6: Final answer
x = 461,560,628.83
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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.