Finding the Fourth Proportional to 6,312,726.40, 8,711,600.88 and 3,412,109.92
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Solution
The fourth proportional to 6,312,726.40, 8,711,600.88 and 3,412,109.92 is: 4,708,732.47
Step by Step Solution
- Step 1: Write the proportion equation
6,312,726.40 : 8,711,600.88 = 3,412,109.92 : x - Step 2: Convert to fraction form
6,312,726.40/8,711,600.88 = 3,412,109.92/x - Step 3: Cross multiply
6,312,726.40x = 8,711,600.88 × 3,412,109.92 - Step 4: Simplify right side
6,312,726.40x = 29,724,939,781,728.73 - Step 5: Solve for x
x = 29,724,939,781,728.73/6,312,726.40 - Step 6: Final answer
x = 4,708,732.47
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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.