Finding the Fourth Proportional to 427,207,727.36, 640,836,402.96 and 164,893,776.32
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Solution
The fourth proportional to 427,207,727.36, 640,836,402.96 and 164,893,776.32 is: 247,350,241.39
Step by Step Solution
- Step 1: Write the proportion equation
427,207,727.36 : 640,836,402.96 = 164,893,776.32 : x - Step 2: Convert to fraction form
427,207,727.36/640,836,402.96 = 164,893,776.32/x - Step 3: Cross multiply
427,207,727.36x = 640,836,402.96 × 164,893,776.32 - Step 4: Simplify right side
427,207,727.36x = 105,669,934,487,399,632 - Step 5: Solve for x
x = 105,669,934,487,399,632/427,207,727.36 - Step 6: Final answer
x = 247,350,241.39
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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.