Finding the Fourth Proportional to 8,639,614.97, 11,921,646.85 and 4,771,905.47
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Solution
The fourth proportional to 8,639,614.97, 11,921,646.85 and 4,771,905.47 is: 6,584,665.17
Step by Step Solution
- Step 1: Write the proportion equation
8,639,614.97 : 11,921,646.85 = 4,771,905.47 : x - Step 2: Convert to fraction form
8,639,614.97/11,921,646.85 = 4,771,905.47/x - Step 3: Cross multiply
8,639,614.97x = 11,921,646.85 × 4,771,905.47 - Step 4: Simplify right side
8,639,614.97x = 56,888,971,814,923.27 - Step 5: Solve for x
x = 56,888,971,814,923.27/8,639,614.97 - Step 6: Final answer
x = 6,584,665.17
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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.