Finding the Fourth Proportional to 7,415,128.90, 11,124,281.55 and 2,297,445.47
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Solution
The fourth proportional to 7,415,128.90, 11,124,281.55 and 2,297,445.47 is: 3,446,660.29
Step by Step Solution
- Step 1: Write the proportion equation
7,415,128.90 : 11,124,281.55 = 2,297,445.47 : x - Step 2: Convert to fraction form
7,415,128.90/11,124,281.55 = 2,297,445.47/x - Step 3: Cross multiply
7,415,128.90x = 11,124,281.55 × 2,297,445.47 - Step 4: Simplify right side
7,415,128.90x = 25,557,430,295,182.89 - Step 5: Solve for x
x = 25,557,430,295,182.89/7,415,128.90 - Step 6: Final answer
x = 3,446,660.29
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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.