Finding the Fourth Proportional to 8,078,536.90, 12,117,805.35 and 5,527,620.10
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Solution
The fourth proportional to 8,078,536.90, 12,117,805.35 and 5,527,620.10 is: 8,291,430.15
Step by Step Solution
- Step 1: Write the proportion equation
8,078,536.90 : 12,117,805.35 = 5,527,620.10 : x - Step 2: Convert to fraction form
8,078,536.90/12,117,805.35 = 5,527,620.10/x - Step 3: Cross multiply
8,078,536.90x = 12,117,805.35 × 5,527,620.10 - Step 4: Simplify right side
8,078,536.90x = 66,982,624,420,547.53 - Step 5: Solve for x
x = 66,982,624,420,547.53/8,078,536.90 - Step 6: Final answer
x = 8,291,430.15
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1.5x scale
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.