Finding the Fourth Proportional to 39,190,395.96, 54,084,592.35 and 21,787,032.02
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Solution
The fourth proportional to 39,190,395.96, 54,084,592.35 and 21,787,032.02 is: 30,067,130.38
Step by Step Solution
- Step 1: Write the proportion equation
39,190,395.96 : 54,084,592.35 = 21,787,032.02 : x - Step 2: Convert to fraction form
39,190,395.96/54,084,592.35 = 21,787,032.02/x - Step 3: Cross multiply
39,190,395.96x = 54,084,592.35 × 21,787,032.02 - Step 4: Simplify right side
39,190,395.96x = 1,178,342,745,047,674.25 - Step 5: Solve for x
x = 1,178,342,745,047,674.25/39,190,395.96 - Step 6: Final answer
x = 30,067,130.38
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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.