Finding the Fourth Proportional to 2,130,232.17, 2,938,828.57 and 1,302,678.90
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Solution
The fourth proportional to 2,130,232.17, 2,938,828.57 and 1,302,678.90 is: 1,797,151.51
Step by Step Solution
- Step 1: Write the proportion equation
2,130,232.17 : 2,938,828.57 = 1,302,678.90 : x - Step 2: Convert to fraction form
2,130,232.17/2,938,828.57 = 1,302,678.90/x - Step 3: Cross multiply
2,130,232.17x = 2,938,828.57 × 1,302,678.90 - Step 4: Simplify right side
2,130,232.17x = 3,828,349,965,599.48 - Step 5: Solve for x
x = 3,828,349,965,599.48/2,130,232.17 - Step 6: Final answer
x = 1,797,151.51
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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.