Finding the Fourth Proportional to 318,453,211.94, 439,479,572.74 and 179,232,990.98
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Solution
The fourth proportional to 318,453,211.94, 439,479,572.74 and 179,232,990.98 is: 247,349,486.02
Step by Step Solution
- Step 1: Write the proportion equation
318,453,211.94 : 439,479,572.74 = 179,232,990.98 : x - Step 2: Convert to fraction form
318,453,211.94/439,479,572.74 = 179,232,990.98/x - Step 3: Cross multiply
318,453,211.94x = 439,479,572.74 × 179,232,990.98 - Step 4: Simplify right side
318,453,211.94x = 78,769,238,294,157,200 - Step 5: Solve for x
x = 78,769,238,294,157,200/318,453,211.94 - Step 6: Final answer
x = 247,349,486.02
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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.