Finding the Fourth Proportional to 5,721,836.79, 8,581,424.76 and 2,129,295.63
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Solution
The fourth proportional to 5,721,836.79, 8,581,424.76 and 2,129,295.63 is: 3,193,448.35
Step by Step Solution
- Step 1: Write the proportion equation
5,721,836.79 : 8,581,424.76 = 2,129,295.63 : x - Step 2: Convert to fraction form
5,721,836.79/8,581,424.76 = 2,129,295.63/x - Step 3: Cross multiply
5,721,836.79x = 8,581,424.76 × 2,129,295.63 - Step 4: Simplify right side
5,721,836.79x = 18,272,390,240,641.80 - Step 5: Solve for x
x = 18,272,390,240,641.80/5,721,836.79 - Step 6: Final answer
x = 3,193,448.35
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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.