Finding the Fourth Proportional to 12,939,352.40, 19,421,470.20 and 6,556,811.60
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Solution
The fourth proportional to 12,939,352.40, 19,421,470.20 and 6,556,811.60 is: 9,841,521.98
Step by Step Solution
- Step 1: Write the proportion equation
12,939,352.40 : 19,421,470.20 = 6,556,811.60 : x - Step 2: Convert to fraction form
12,939,352.40/19,421,470.20 = 6,556,811.60/x - Step 3: Cross multiply
12,939,352.40x = 19,421,470.20 × 6,556,811.60 - Step 4: Simplify right side
12,939,352.40x = 127,342,921,096,414.31 - Step 5: Solve for x
x = 127,342,921,096,414.31/12,939,352.40 - Step 6: Final answer
x = 9,841,521.98
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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.