Finding the Fourth Proportional to 5,430,175.74, 7,493,205.51 and 3,138,484.86
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Solution
The fourth proportional to 5,430,175.74, 7,493,205.51 and 3,138,484.86 is: 4,330,856.53
Step by Step Solution
- Step 1: Write the proportion equation
5,430,175.74 : 7,493,205.51 = 3,138,484.86 : x - Step 2: Convert to fraction form
5,430,175.74/7,493,205.51 = 3,138,484.86/x - Step 3: Cross multiply
5,430,175.74x = 7,493,205.51 × 3,138,484.86 - Step 4: Simplify right side
5,430,175.74x = 23,517,312,046,003.58 - Step 5: Solve for x
x = 23,517,312,046,003.58/5,430,175.74 - Step 6: Final answer
x = 4,330,856.53
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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.