Finding the Fourth Proportional to 666,136,248.18, 919,364,178.18 and 383,824,619.70
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Solution
The fourth proportional to 666,136,248.18, 919,364,178.18 and 383,824,619.70 is: 529,733,379.65
Step by Step Solution
- Step 1: Write the proportion equation
666,136,248.18 : 919,364,178.18 = 383,824,619.70 : x - Step 2: Convert to fraction form
666,136,248.18/919,364,178.18 = 383,824,619.70/x - Step 3: Cross multiply
666,136,248.18x = 919,364,178.18 × 383,824,619.70 - Step 4: Simplify right side
666,136,248.18x = 352,874,606,055,741,504 - Step 5: Solve for x
x = 352,874,606,055,741,504/666,136,248.18 - Step 6: Final answer
x = 529,733,379.65
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1.5x scale
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.