Finding the Fourth Proportional to 7,208,465.20, 10,812,697.80 and 4,374,113.20
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Solution
The fourth proportional to 7,208,465.20, 10,812,697.80 and 4,374,113.20 is: 6,561,169.80
Step by Step Solution
- Step 1: Write the proportion equation
7,208,465.20 : 10,812,697.80 = 4,374,113.20 : x - Step 2: Convert to fraction form
7,208,465.20/10,812,697.80 = 4,374,113.20/x - Step 3: Cross multiply
7,208,465.20x = 10,812,697.80 × 4,374,113.20 - Step 4: Simplify right side
7,208,465.20x = 47,295,964,174,590.97 - Step 5: Solve for x
x = 47,295,964,174,590.97/7,208,465.20 - Step 6: Final answer
x = 6,561,169.80
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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.