Finding the Fourth Proportional to 8,908,809.40, 13,391,207.70 and 8,740,847.80
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Solution
The fourth proportional to 8,908,809.40, 13,391,207.70 and 8,740,847.80 is: 13,138,737.52
Step by Step Solution
- Step 1: Write the proportion equation
8,908,809.40 : 13,391,207.70 = 8,740,847.80 : x - Step 2: Convert to fraction form
8,908,809.40/13,391,207.70 = 8,740,847.80/x - Step 3: Cross multiply
8,908,809.40x = 13,391,207.70 × 8,740,847.80 - Step 4: Simplify right side
8,908,809.40x = 117,050,508,363,888.06 - Step 5: Solve for x
x = 117,050,508,363,888.06/8,908,809.40 - Step 6: Final answer
x = 13,138,737.52
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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.