Finding the Fourth Proportional to 8,745,257.46, 12,063,868.29 and 7,115,485.62
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Solution
The fourth proportional to 8,745,257.46, 12,063,868.29 and 7,115,485.62 is: 9,815,637.99
Step by Step Solution
- Step 1: Write the proportion equation
8,745,257.46 : 12,063,868.29 = 7,115,485.62 : x - Step 2: Convert to fraction form
8,745,257.46/12,063,868.29 = 7,115,485.62/x - Step 3: Cross multiply
8,745,257.46x = 12,063,868.29 × 7,115,485.62 - Step 4: Simplify right side
8,745,257.46x = 85,840,281,339,068.98 - Step 5: Solve for x
x = 85,840,281,339,068.98/8,745,257.46 - Step 6: Final answer
x = 9,815,637.99
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1.5x scale
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.