Finding the Fourth Proportional to 60,719,969.91, 91,079,884.08 and 19,779,342.96
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Solution
The fourth proportional to 60,719,969.91, 91,079,884.08 and 19,779,342.96 is: 29,668,991.38
Step by Step Solution
- Step 1: Write the proportion equation
60,719,969.91 : 91,079,884.08 = 19,779,342.96 : x - Step 2: Convert to fraction form
60,719,969.91/91,079,884.08 = 19,779,342.96/x - Step 3: Cross multiply
60,719,969.91x = 91,079,884.08 × 19,779,342.96 - Step 4: Simplify right side
60,719,969.91x = 1,801,500,263,975,364 - Step 5: Solve for x
x = 1,801,500,263,975,364/60,719,969.91 - Step 6: Final answer
x = 29,668,991.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.