Finding the Fourth Proportional to 7,488,194.40, 11,232,291.60 and 7,338,895.20
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Solution
The fourth proportional to 7,488,194.40, 11,232,291.60 and 7,338,895.20 is: 11,008,342.80
Step by Step Solution
- Step 1: Write the proportion equation
7,488,194.40 : 11,232,291.60 = 7,338,895.20 : x - Step 2: Convert to fraction form
7,488,194.40/11,232,291.60 = 7,338,895.20/x - Step 3: Cross multiply
7,488,194.40x = 11,232,291.60 × 7,338,895.20 - Step 4: Simplify right side
7,488,194.40x = 82,432,610,908,240.31 - Step 5: Solve for x
x = 82,432,610,908,240.31/7,488,194.40 - Step 6: Final answer
x = 11,008,342.80
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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.