Finding the Fourth Proportional to 10,369,624.70, 15,554,437.05 and 8,480,056.70
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Solution
The fourth proportional to 10,369,624.70, 15,554,437.05 and 8,480,056.70 is: 12,720,085.05
Step by Step Solution
- Step 1: Write the proportion equation
10,369,624.70 : 15,554,437.05 = 8,480,056.70 : x - Step 2: Convert to fraction form
10,369,624.70/15,554,437.05 = 8,480,056.70/x - Step 3: Cross multiply
10,369,624.70x = 15,554,437.05 × 8,480,056.70 - Step 4: Simplify right side
10,369,624.70x = 131,902,508,120,580.73 - Step 5: Solve for x
x = 131,902,508,120,580.73/10,369,624.70 - Step 6: Final answer
x = 12,720,085.05
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1.5x scale
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.