Finding the Fourth Proportional to 9,155,138.12, 12,644,576.28 and 6,029,374.68
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Solution
The fourth proportional to 9,155,138.12, 12,644,576.28 and 6,029,374.68 is: 8,327,442.70
Step by Step Solution
- Step 1: Write the proportion equation
9,155,138.12 : 12,644,576.28 = 6,029,374.68 : x - Step 2: Convert to fraction form
9,155,138.12/12,644,576.28 = 6,029,374.68/x - Step 3: Cross multiply
9,155,138.12x = 12,644,576.28 × 6,029,374.68 - Step 4: Simplify right side
9,155,138.12x = 76,238,888,061,960.58 - Step 5: Solve for x
x = 76,238,888,061,960.58/9,155,138.12 - Step 6: Final answer
x = 8,327,442.70
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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.