Finding the Fourth Proportional to 7,193,925.40, 9,927,321.63 and 3,930,852.14
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Solution
The fourth proportional to 7,193,925.40, 9,927,321.63 and 3,930,852.14 is: 5,424,414.53
Step by Step Solution
- Step 1: Write the proportion equation
7,193,925.40 : 9,927,321.63 = 3,930,852.14 : x - Step 2: Convert to fraction form
7,193,925.40/9,927,321.63 = 3,930,852.14/x - Step 3: Cross multiply
7,193,925.40x = 9,927,321.63 × 3,930,852.14 - Step 4: Simplify right side
7,193,925.40x = 39,022,833,473,753.79 - Step 5: Solve for x
x = 39,022,833,473,753.79/7,193,925.40 - Step 6: Final answer
x = 5,424,414.53
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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.