Finding the Fourth Proportional to 3,750,128.74, 5,175,179.14 and 2,031,243.94
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Solution
The fourth proportional to 3,750,128.74, 5,175,179.14 and 2,031,243.94 is: 2,803,117.44
Step by Step Solution
- Step 1: Write the proportion equation
3,750,128.74 : 5,175,179.14 = 2,031,243.94 : x - Step 2: Convert to fraction form
3,750,128.74/5,175,179.14 = 2,031,243.94/x - Step 3: Cross multiply
3,750,128.74x = 5,175,179.14 × 2,031,243.94 - Step 4: Simplify right side
3,750,128.74x = 10,512,051,266,539.41 - Step 5: Solve for x
x = 10,512,051,266,539.41/3,750,128.74 - Step 6: Final answer
x = 2,803,117.44
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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.