Finding the Fourth Proportional to 18,777,330.70, 28,117,487.79 and 12,959,468.53
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Solution
The fourth proportional to 18,777,330.70, 28,117,487.79 and 12,959,468.53 is: 19,405,724.06
Step by Step Solution
- Step 1: Write the proportion equation
18,777,330.70 : 28,117,487.79 = 12,959,468.53 : x - Step 2: Convert to fraction form
18,777,330.70/28,117,487.79 = 12,959,468.53/x - Step 3: Cross multiply
18,777,330.70x = 28,117,487.79 × 12,959,468.53 - Step 4: Simplify right side
18,777,330.70x = 364,387,698,157,164.19 - Step 5: Solve for x
x = 364,387,698,157,164.19/18,777,330.70 - Step 6: Final answer
x = 19,405,724.06
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.