Finding the Fourth Proportional to 8,713,053.70, 13,069,580.55 and 5,120,541.70
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Solution
The fourth proportional to 8,713,053.70, 13,069,580.55 and 5,120,541.70 is: 7,680,812.55
Step by Step Solution
- Step 1: Write the proportion equation
8,713,053.70 : 13,069,580.55 = 5,120,541.70 : x - Step 2: Convert to fraction form
8,713,053.70/13,069,580.55 = 5,120,541.70/x - Step 3: Cross multiply
8,713,053.70x = 13,069,580.55 × 5,120,541.70 - Step 4: Simplify right side
8,713,053.70x = 66,923,332,207,783.94 - Step 5: Solve for x
x = 66,923,332,207,783.94/8,713,053.70 - Step 6: Final answer
x = 7,680,812.55
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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.