Finding the Fourth Proportional to 3,677,948.65, 5,075,489.66 and 2,129,275.97
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Solution
The fourth proportional to 3,677,948.65, 5,075,489.66 and 2,129,275.97 is: 2,938,354.82
Step by Step Solution
- Step 1: Write the proportion equation
3,677,948.65 : 5,075,489.66 = 2,129,275.97 : x - Step 2: Convert to fraction form
3,677,948.65/5,075,489.66 = 2,129,275.97/x - Step 3: Cross multiply
3,677,948.65x = 5,075,489.66 × 2,129,275.97 - Step 4: Simplify right side
3,677,948.65x = 10,807,118,132,997.64 - Step 5: Solve for x
x = 10,807,118,132,997.64/3,677,948.65 - Step 6: Final answer
x = 2,938,354.82
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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.