Finding the Fourth Proportional to 5,190,074.96, 7,785,324.53 and 1,780,705.98
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Solution
The fourth proportional to 5,190,074.96, 7,785,324.53 and 1,780,705.98 is: 2,671,131.74
Step by Step Solution
- Step 1: Write the proportion equation
5,190,074.96 : 7,785,324.53 = 1,780,705.98 : x - Step 2: Convert to fraction form
5,190,074.96/7,785,324.53 = 1,780,705.98/x - Step 3: Cross multiply
5,190,074.96x = 7,785,324.53 × 1,780,705.98 - Step 4: Simplify right side
5,190,074.96x = 13,863,373,937,908.16 - Step 5: Solve for x
x = 13,863,373,937,908.16/5,190,074.96 - Step 6: Final answer
x = 2,671,131.74
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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.