Finding the Fourth Proportional to 7,664,411.21, 11,497,281.35 and 2,808,036.92
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Solution
The fourth proportional to 7,664,411.21, 11,497,281.35 and 2,808,036.92 is: 4,212,298.85
Step by Step Solution
- Step 1: Write the proportion equation
7,664,411.21 : 11,497,281.35 = 2,808,036.92 : x - Step 2: Convert to fraction form
7,664,411.21/11,497,281.35 = 2,808,036.92/x - Step 3: Cross multiply
7,664,411.21x = 11,497,281.35 × 2,808,036.92 - Step 4: Simplify right side
7,664,411.21x = 32,284,790,525,130.46 - Step 5: Solve for x
x = 32,284,790,525,130.46/7,664,411.21 - Step 6: Final answer
x = 4,212,298.85
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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.