Finding the Fourth Proportional to 7,119,775.09, 9,825,058.97 and 3,979,955.23
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Solution
The fourth proportional to 7,119,775.09, 9,825,058.97 and 3,979,955.23 is: 5,492,209.29
Step by Step Solution
- Step 1: Write the proportion equation
7,119,775.09 : 9,825,058.97 = 3,979,955.23 : x - Step 2: Convert to fraction form
7,119,775.09/9,825,058.97 = 3,979,955.23/x - Step 3: Cross multiply
7,119,775.09x = 9,825,058.97 × 3,979,955.23 - Step 4: Simplify right side
7,119,775.09x = 39,103,294,880,825.52 - Step 5: Solve for x
x = 39,103,294,880,825.52/7,119,775.09 - Step 6: Final answer
x = 5,492,209.29
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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.