Finding the Fourth Proportional to 458,550,727.90, 632,783,381.06 and 280,232,942.05
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Solution
The fourth proportional to 458,550,727.90, 632,783,381.06 and 280,232,942.05 is: 386,711,300.99
Step by Step Solution
- Step 1: Write the proportion equation
458,550,727.90 : 632,783,381.06 = 280,232,942.05 : x - Step 2: Convert to fraction form
458,550,727.90/632,783,381.06 = 280,232,942.05/x - Step 3: Cross multiply
458,550,727.90x = 632,783,381.06 × 280,232,942.05 - Step 4: Simplify right side
458,550,727.90x = 177,326,748,554,703,872 - Step 5: Solve for x
x = 177,326,748,554,703,872/458,550,727.90 - Step 6: Final answer
x = 386,711,300.99
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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.