Finding the Fourth Proportional to 4,751,878.40, 7,113,820.80 and 4,475,052.80
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Solution
The fourth proportional to 4,751,878.40, 7,113,820.80 and 4,475,052.80 is: 6,699,397.80
Step by Step Solution
- Step 1: Write the proportion equation
4,751,878.40 : 7,113,820.80 = 4,475,052.80 : x - Step 2: Convert to fraction form
4,751,878.40/7,113,820.80 = 4,475,052.80/x - Step 3: Cross multiply
4,751,878.40x = 7,113,820.80 × 4,475,052.80 - Step 4: Simplify right side
4,751,878.40x = 31,834,723,689,738.24 - Step 5: Solve for x
x = 31,834,723,689,738.24/4,751,878.40 - Step 6: Final answer
x = 6,699,397.80
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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.