Finding the Fourth Proportional to 7,046,153.60, 9,723,367.04 and 3,990,390.08
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Solution
The fourth proportional to 7,046,153.60, 9,723,367.04 and 3,990,390.08 is: 5,506,554.30
Step by Step Solution
- Step 1: Write the proportion equation
7,046,153.60 : 9,723,367.04 = 3,990,390.08 : x - Step 2: Convert to fraction form
7,046,153.60/9,723,367.04 = 3,990,390.08/x - Step 3: Cross multiply
7,046,153.60x = 9,723,367.04 × 3,990,390.08 - Step 4: Simplify right side
7,046,153.60x = 38,800,027,380,614.96 - Step 5: Solve for x
x = 38,800,027,380,614.96/7,046,153.60 - Step 6: Final answer
x = 5,506,554.30
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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.