Finding the Fourth Proportional to 12,748,403.92, 19,126,342.96 and 4,112,331.88
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Solution
The fourth proportional to 12,748,403.92, 19,126,342.96 and 4,112,331.88 is: 6,169,703.31
Step by Step Solution
- Step 1: Write the proportion equation
12,748,403.92 : 19,126,342.96 = 4,112,331.88 : x - Step 2: Convert to fraction form
12,748,403.92/19,126,342.96 = 4,112,331.88/x - Step 3: Cross multiply
12,748,403.92x = 19,126,342.96 × 4,112,331.88 - Step 4: Simplify right side
12,748,403.92x = 78,653,869,902,221.56 - Step 5: Solve for x
x = 78,653,869,902,221.56/12,748,403.92 - Step 6: Final answer
x = 6,169,703.31
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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.