Finding the Fourth Proportional to 7,862,121.72, 11,793,248.60 and 2,182,788.92
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Solution
The fourth proportional to 7,862,121.72, 11,793,248.60 and 2,182,788.92 is: 3,274,201.71
Step by Step Solution
- Step 1: Write the proportion equation
7,862,121.72 : 11,793,248.60 = 2,182,788.92 : x - Step 2: Convert to fraction form
7,862,121.72/11,793,248.60 = 2,182,788.92/x - Step 3: Cross multiply
7,862,121.72x = 11,793,248.60 × 2,182,788.92 - Step 4: Simplify right side
7,862,121.72x = 25,742,172,374,885.51 - Step 5: Solve for x
x = 25,742,172,374,885.51/7,862,121.72 - Step 6: Final answer
x = 3,274,201.71
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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.