Finding the Fourth Proportional to 5,479,528.10, 7,688,135.50 and 5,479,528.10
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Solution
The fourth proportional to 5,479,528.10, 7,688,135.50 and 5,479,528.10 is: 7,688,135.50
Step by Step Solution
- Step 1: Write the proportion equation
5,479,528.10 : 7,688,135.50 = 5,479,528.10 : x - Step 2: Convert to fraction form
5,479,528.10/7,688,135.50 = 5,479,528.10/x - Step 3: Cross multiply
5,479,528.10x = 7,688,135.50 × 5,479,528.10 - Step 4: Simplify right side
5,479,528.10x = 42,127,354,508,857.55 - Step 5: Solve for x
x = 42,127,354,508,857.55/5,479,528.10 - Step 6: Final answer
x = 7,688,135.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.