Finding the Fourth Proportional to 7,432,878.30, 11,149,317.45 and 2,645,972.70
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Solution
The fourth proportional to 7,432,878.30, 11,149,317.45 and 2,645,972.70 is: 3,968,959.05
Step by Step Solution
- Step 1: Write the proportion equation
7,432,878.30 : 11,149,317.45 = 2,645,972.70 : x - Step 2: Convert to fraction form
7,432,878.30/11,149,317.45 = 2,645,972.70/x - Step 3: Cross multiply
7,432,878.30x = 11,149,317.45 × 2,645,972.70 - Step 4: Simplify right side
7,432,878.30x = 29,500,789,596,333.61 - Step 5: Solve for x
x = 29,500,789,596,333.61/7,432,878.30 - Step 6: Final answer
x = 3,968,959.05
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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.