Finding the Fourth Proportional to 670,645,613.94, 925,490,991.74 and 373,281,474.53
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Solution
The fourth proportional to 670,645,613.94, 925,490,991.74 and 373,281,474.53 is: 515,128,459.62
Step by Step Solution
- Step 1: Write the proportion equation
670,645,613.94 : 925,490,991.74 = 373,281,474.53 : x - Step 2: Convert to fraction form
670,645,613.94/925,490,991.74 = 373,281,474.53/x - Step 3: Cross multiply
670,645,613.94x = 925,490,991.74 × 373,281,474.53 - Step 4: Simplify right side
670,645,613.94x = 345,468,642,057,244,928 - Step 5: Solve for x
x = 345,468,642,057,244,928/670,645,613.94 - Step 6: Final answer
x = 515,128,459.62
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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.