Finding the Fourth Proportional to 5,739,175.74, 7,920,420.71 and 3,160,855.83
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Solution
The fourth proportional to 5,739,175.74, 7,920,420.71 and 3,160,855.83 is: 4,362,178.32
Step by Step Solution
- Step 1: Write the proportion equation
5,739,175.74 : 7,920,420.71 = 3,160,855.83 : x - Step 2: Convert to fraction form
5,739,175.74/7,920,420.71 = 3,160,855.83/x - Step 3: Cross multiply
5,739,175.74x = 7,920,420.71 × 3,160,855.83 - Step 4: Simplify right side
5,739,175.74x = 25,035,307,977,256.24 - Step 5: Solve for x
x = 25,035,307,977,256.24/5,739,175.74 - Step 6: Final answer
x = 4,362,178.32
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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.