Finding the Fourth Proportional to 7,175,188.05, 9,911,211.28 and 5,318,367.74
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Solution
The fourth proportional to 7,175,188.05, 9,911,211.28 and 5,318,367.74 is: 7,346,353.29
Step by Step Solution
- Step 1: Write the proportion equation
7,175,188.05 : 9,911,211.28 = 5,318,367.74 : x - Step 2: Convert to fraction form
7,175,188.05/9,911,211.28 = 5,318,367.74/x - Step 3: Cross multiply
7,175,188.05x = 9,911,211.28 × 5,318,367.74 - Step 4: Simplify right side
7,175,188.05x = 52,711,466,335,876.11 - Step 5: Solve for x
x = 52,711,466,335,876.11/7,175,188.05 - Step 6: Final answer
x = 7,346,353.29
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1.5x scale
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.