Finding the Fourth Proportional to 6,642,991.28, 9,167,355.96 and 3,742,416.92
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Solution
The fourth proportional to 6,642,991.28, 9,167,355.96 and 3,742,416.92 is: 5,164,551.12
Step by Step Solution
- Step 1: Write the proportion equation
6,642,991.28 : 9,167,355.96 = 3,742,416.92 : x - Step 2: Convert to fraction form
6,642,991.28/9,167,355.96 = 3,742,416.92/x - Step 3: Cross multiply
6,642,991.28x = 9,167,355.96 × 3,742,416.92 - Step 4: Simplify right side
6,642,991.28x = 34,308,068,056,366.85 - Step 5: Solve for x
x = 34,308,068,056,366.85/6,642,991.28 - Step 6: Final answer
x = 5,164,551.12
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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.