Finding the Fourth Proportional to 7,480,636.12, 10,318,490.94 and 5,187,960.28
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Solution
The fourth proportional to 7,480,636.12, 10,318,490.94 and 5,187,960.28 is: 7,156,065.38
Step by Step Solution
- Step 1: Write the proportion equation
7,480,636.12 : 10,318,490.94 = 5,187,960.28 : x - Step 2: Convert to fraction form
7,480,636.12/10,318,490.94 = 5,187,960.28/x - Step 3: Cross multiply
7,480,636.12x = 10,318,490.94 × 5,187,960.28 - Step 4: Simplify right side
7,480,636.12x = 53,531,921,146,259.86 - Step 5: Solve for x
x = 53,531,921,146,259.86/7,480,636.12 - Step 6: Final answer
x = 7,156,065.38
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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.