Finding the Fourth Proportional to 8,947,257.18, 12,347,356.95 and 5,079,699.42
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Solution
The fourth proportional to 8,947,257.18, 12,347,356.95 and 5,079,699.42 is: 7,010,065.84
Step by Step Solution
- Step 1: Write the proportion equation
8,947,257.18 : 12,347,356.95 = 5,079,699.42 : x - Step 2: Convert to fraction form
8,947,257.18/12,347,356.95 = 5,079,699.42/x - Step 3: Cross multiply
8,947,257.18x = 12,347,356.95 × 5,079,699.42 - Step 4: Simplify right side
8,947,257.18x = 62,720,861,937,447.96 - Step 5: Solve for x
x = 62,720,861,937,447.96/8,947,257.18 - Step 6: Final answer
x = 7,010,065.84
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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.