Finding the Fourth Proportional to 7,193,968.16, 9,920,927.68 and 4,616,460.32
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Solution
The fourth proportional to 7,193,968.16, 9,920,927.68 and 4,616,460.32 is: 6,366,384.72
Step by Step Solution
- Step 1: Write the proportion equation
7,193,968.16 : 9,920,927.68 = 4,616,460.32 : x - Step 2: Convert to fraction form
7,193,968.16/9,920,927.68 = 4,616,460.32/x - Step 3: Cross multiply
7,193,968.16x = 9,920,927.68 × 4,616,460.32 - Step 4: Simplify right side
7,193,968.16x = 45,799,568,972,309.66 - Step 5: Solve for x
x = 45,799,568,972,309.66/7,193,968.16 - Step 6: Final answer
x = 6,366,384.72
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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.