Finding the Fourth Proportional to 319,139,611.60, 440,393,683.32 and 185,167,149.12
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Solution
The fourth proportional to 319,139,611.60, 440,393,683.32 and 185,167,149.12 is: 255,519,653.05
Step by Step Solution
- Step 1: Write the proportion equation
319,139,611.60 : 440,393,683.32 = 185,167,149.12 : x - Step 2: Convert to fraction form
319,139,611.60/440,393,683.32 = 185,167,149.12/x - Step 3: Cross multiply
319,139,611.60x = 440,393,683.32 × 185,167,149.12 - Step 4: Simplify right side
319,139,611.60x = 81,546,442,830,820,496 - Step 5: Solve for x
x = 81,546,442,830,820,496/319,139,611.60 - Step 6: Final answer
x = 255,519,653.05
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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.