Finding the Fourth Proportional to 4,283,221.20, 6,412,390.20 and 4,158,805.20
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Solution
The fourth proportional to 4,283,221.20, 6,412,390.20 and 4,158,805.20 is: 6,226,127.59
Step by Step Solution
- Step 1: Write the proportion equation
4,283,221.20 : 6,412,390.20 = 4,158,805.20 : x - Step 2: Convert to fraction form
4,283,221.20/6,412,390.20 = 4,158,805.20/x - Step 3: Cross multiply
4,283,221.20x = 6,412,390.20 × 4,158,805.20 - Step 4: Simplify right side
4,283,221.20x = 26,667,881,708,189.04 - Step 5: Solve for x
x = 26,667,881,708,189.04/4,283,221.20 - Step 6: Final answer
x = 6,226,127.59
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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.