Finding the Fourth Proportional to 7,280,741.80, 10,921,112.70 and 4,885,733.80
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Solution
The fourth proportional to 7,280,741.80, 10,921,112.70 and 4,885,733.80 is: 7,328,600.70
Step by Step Solution
- Step 1: Write the proportion equation
7,280,741.80 : 10,921,112.70 = 4,885,733.80 : x - Step 2: Convert to fraction form
7,280,741.80/10,921,112.70 = 4,885,733.80/x - Step 3: Cross multiply
7,280,741.80x = 10,921,112.70 × 4,885,733.80 - Step 4: Simplify right side
7,280,741.80x = 53,357,649,451,999.26 - Step 5: Solve for x
x = 53,357,649,451,999.26/7,280,741.80 - Step 6: Final answer
x = 7,328,600.70
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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.