Finding the Fourth Proportional to 11,456,153.68, 15,809,372.28 and 8,529,058.72
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Solution
The fourth proportional to 11,456,153.68, 15,809,372.28 and 8,529,058.72 is: 11,770,011.84
Step by Step Solution
- Step 1: Write the proportion equation
11,456,153.68 : 15,809,372.28 = 8,529,058.72 : x - Step 2: Convert to fraction form
11,456,153.68/15,809,372.28 = 8,529,058.72/x - Step 3: Cross multiply
11,456,153.68x = 15,809,372.28 × 8,529,058.72 - Step 4: Simplify right side
11,456,153.68x = 134,839,064,502,460.28 - Step 5: Solve for x
x = 134,839,064,502,460.28/11,456,153.68 - Step 6: Final answer
x = 11,770,011.84
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1.5x scale
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.