Finding the Fourth Proportional to 21,153,170.88, 31,734,324.63 and 6,579,813.18
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Solution
The fourth proportional to 21,153,170.88, 31,734,324.63 and 6,579,813.18 is: 9,871,140.77
Step by Step Solution
- Step 1: Write the proportion equation
21,153,170.88 : 31,734,324.63 = 6,579,813.18 : x - Step 2: Convert to fraction form
21,153,170.88/31,734,324.63 = 6,579,813.18/x - Step 3: Cross multiply
21,153,170.88x = 31,734,324.63 × 6,579,813.18 - Step 4: Simplify right side
21,153,170.88x = 208,805,927,458,872.59 - Step 5: Solve for x
x = 208,805,927,458,872.59/21,153,170.88 - Step 6: Final answer
x = 9,871,140.77
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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.