Finding the Fourth Proportional to 7,126,216.64, 10,690,165.70 and 5,340,450.32
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Solution
The fourth proportional to 7,126,216.64, 10,690,165.70 and 5,340,450.32 is: 8,011,305.53
Step by Step Solution
- Step 1: Write the proportion equation
7,126,216.64 : 10,690,165.70 = 5,340,450.32 : x - Step 2: Convert to fraction form
7,126,216.64/10,690,165.70 = 5,340,450.32/x - Step 3: Cross multiply
7,126,216.64x = 10,690,165.70 × 5,340,450.32 - Step 4: Simplify right side
7,126,216.64x = 57,090,298,843,419.79 - Step 5: Solve for x
x = 57,090,298,843,419.79/7,126,216.64 - Step 6: Final answer
x = 8,011,305.53
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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.