Finding the Fourth Proportional to 8,738,516.12, 12,064,319.21 and 7,768,963.80
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Solution
The fourth proportional to 8,738,516.12, 12,064,319.21 and 7,768,963.80 is: 10,725,763.73
Step by Step Solution
- Step 1: Write the proportion equation
8,738,516.12 : 12,064,319.21 = 7,768,963.80 : x - Step 2: Convert to fraction form
8,738,516.12/12,064,319.21 = 7,768,963.80/x - Step 3: Cross multiply
8,738,516.12x = 12,064,319.21 × 7,768,963.80 - Step 4: Simplify right side
8,738,516.12x = 93,727,259,214,134.61 - Step 5: Solve for x
x = 93,727,259,214,134.61/8,738,516.12 - Step 6: Final answer
x = 10,725,763.73
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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.