Finding the Fourth Proportional to 7,135,390.71, 9,846,864.96 and 3,872,204.46
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Solution
The fourth proportional to 7,135,390.71, 9,846,864.96 and 3,872,204.46 is: 5,343,656.15
Step by Step Solution
- Step 1: Write the proportion equation
7,135,390.71 : 9,846,864.96 = 3,872,204.46 : x - Step 2: Convert to fraction form
7,135,390.71/9,846,864.96 = 3,872,204.46/x - Step 3: Cross multiply
7,135,390.71x = 9,846,864.96 × 3,872,204.46 - Step 4: Simplify right side
7,135,390.71x = 38,129,074,415,129.73 - Step 5: Solve for x
x = 38,129,074,415,129.73/7,135,390.71 - Step 6: Final answer
x = 5,343,656.15
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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.