Finding the Fourth Proportional to 15,329,755.85, 21,151,425.92 and 8,713,823.87
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Solution
The fourth proportional to 15,329,755.85, 21,151,425.92 and 8,713,823.87 is: 12,023,009.49
Step by Step Solution
- Step 1: Write the proportion equation
15,329,755.85 : 21,151,425.92 = 8,713,823.87 : x - Step 2: Convert to fraction form
15,329,755.85/21,151,425.92 = 8,713,823.87/x - Step 3: Cross multiply
15,329,755.85x = 21,151,425.92 × 8,713,823.87 - Step 4: Simplify right side
15,329,755.85x = 184,309,800,075,542.16 - Step 5: Solve for x
x = 184,309,800,075,542.16/15,329,755.85 - Step 6: Final answer
x = 12,023,009.49
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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.