Finding the Fourth Proportional to 919,531,008.42, 1,379,247,063.65 and 452,727,074.09
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Solution
The fourth proportional to 919,531,008.42, 1,379,247,063.65 and 452,727,074.09 is: 679,066,265.15
Step by Step Solution
- Step 1: Write the proportion equation
919,531,008.42 : 1,379,247,063.65 = 452,727,074.09 : x - Step 2: Convert to fraction form
919,531,008.42/1,379,247,063.65 = 452,727,074.09/x - Step 3: Cross multiply
919,531,008.42x = 1,379,247,063.65 × 452,727,074.09 - Step 4: Simplify right side
919,531,008.42x = 624,422,487,573,488,512 - Step 5: Solve for x
x = 624,422,487,573,488,512/919,531,008.42 - Step 6: Final answer
x = 679,066,265.15
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1.5x scale
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.