Finding the Fourth Proportional to 395,293,432.48, 545,186,859.97 and 347,506,511.32
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Solution
The fourth proportional to 395,293,432.48, 545,186,859.97 and 347,506,511.32 is: 479,279,361.00
Step by Step Solution
- Step 1: Write the proportion equation
395,293,432.48 : 545,186,859.97 = 347,506,511.32 : x - Step 2: Convert to fraction form
395,293,432.48/545,186,859.97 = 347,506,511.32/x - Step 3: Cross multiply
395,293,432.48x = 545,186,859.97 × 347,506,511.32 - Step 4: Simplify right side
395,293,432.48x = 189,455,983,725,680,064 - Step 5: Solve for x
x = 189,455,983,725,680,064/395,293,432.48 - Step 6: Final answer
x = 479,279,361.00
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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.