Finding the Fourth Proportional to 8,645,302.81, 11,930,536.91 and 4,725,121.71
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Solution
The fourth proportional to 8,645,302.81, 11,930,536.91 and 4,725,121.71 is: 6,520,678.36
Step by Step Solution
- Step 1: Write the proportion equation
8,645,302.81 : 11,930,536.91 = 4,725,121.71 : x - Step 2: Convert to fraction form
8,645,302.81/11,930,536.91 = 4,725,121.71/x - Step 3: Cross multiply
8,645,302.81x = 11,930,536.91 × 4,725,121.71 - Step 4: Simplify right side
8,645,302.81x = 56,373,238,941,771.70 - Step 5: Solve for x
x = 56,373,238,941,771.70/8,645,302.81 - Step 6: Final answer
x = 6,520,678.36
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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.