Finding the Fourth Proportional to 7,518,212.16, 10,375,140.36 and 4,080,454.74
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Solution
The fourth proportional to 7,518,212.16, 10,375,140.36 and 4,080,454.74 is: 5,631,031.65
Step by Step Solution
- Step 1: Write the proportion equation
7,518,212.16 : 10,375,140.36 = 4,080,454.74 : x - Step 2: Convert to fraction form
7,518,212.16/10,375,140.36 = 4,080,454.74/x - Step 3: Cross multiply
7,518,212.16x = 10,375,140.36 × 4,080,454.74 - Step 4: Simplify right side
7,518,212.16x = 42,335,290,660,127.30 - Step 5: Solve for x
x = 42,335,290,660,127.30/7,518,212.16 - Step 6: Final answer
x = 5,631,031.65
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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.