Finding the Fourth Proportional to 8,201,539.20, 12,302,308.80 and 7,828,291.20
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Solution
The fourth proportional to 8,201,539.20, 12,302,308.80 and 7,828,291.20 is: 11,742,436.80
Step by Step Solution
- Step 1: Write the proportion equation
8,201,539.20 : 12,302,308.80 = 7,828,291.20 : x - Step 2: Convert to fraction form
8,201,539.20/12,302,308.80 = 7,828,291.20/x - Step 3: Cross multiply
8,201,539.20x = 12,302,308.80 × 7,828,291.20 - Step 4: Simplify right side
8,201,539.20x = 96,306,055,718,722.56 - Step 5: Solve for x
x = 96,306,055,718,722.56/8,201,539.20 - Step 6: Final answer
x = 11,742,436.80
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1.5x scale
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.