Finding the Fourth Proportional to 7,638,058.09, 10,540,199.43 and 4,330,574.88
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Solution
The fourth proportional to 7,638,058.09, 10,540,199.43 and 4,330,574.88 is: 5,976,011.49
Step by Step Solution
- Step 1: Write the proportion equation
7,638,058.09 : 10,540,199.43 = 4,330,574.88 : x - Step 2: Convert to fraction form
7,638,058.09/10,540,199.43 = 4,330,574.88/x - Step 3: Cross multiply
7,638,058.09x = 10,540,199.43 × 4,330,574.88 - Step 4: Simplify right side
7,638,058.09x = 45,645,122,881,748.31 - Step 5: Solve for x
x = 45,645,122,881,748.31/7,638,058.09 - Step 6: Final answer
x = 5,976,011.49
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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.