Finding the Fourth Proportional to 21,343,948.93, 29,454,615.46 and 11,554,390.52
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Solution
The fourth proportional to 21,343,948.93, 29,454,615.46 and 11,554,390.52 is: 15,945,040.48
Step by Step Solution
- Step 1: Write the proportion equation
21,343,948.93 : 29,454,615.46 = 11,554,390.52 : x - Step 2: Convert to fraction form
21,343,948.93/29,454,615.46 = 11,554,390.52/x - Step 3: Cross multiply
21,343,948.93x = 29,454,615.46 × 11,554,390.52 - Step 4: Simplify right side
21,343,948.93x = 340,330,129,641,269.44 - Step 5: Solve for x
x = 340,330,129,641,269.44/21,343,948.93 - Step 6: Final answer
x = 15,945,040.48
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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.