Finding the Fourth Proportional to 11,518,551.88, 15,895,507.12 and 6,291,563.40
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Solution
The fourth proportional to 11,518,551.88, 15,895,507.12 and 6,291,563.40 is: 8,682,305.89
Step by Step Solution
- Step 1: Write the proportion equation
11,518,551.88 : 15,895,507.12 = 6,291,563.40 : x - Step 2: Convert to fraction form
11,518,551.88/15,895,507.12 = 6,291,563.40/x - Step 3: Cross multiply
11,518,551.88x = 15,895,507.12 × 6,291,563.40 - Step 4: Simplify right side
11,518,551.88x = 100,007,590,820,631.41 - Step 5: Solve for x
x = 100,007,590,820,631.41/11,518,551.88 - Step 6: Final answer
x = 8,682,305.89
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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.