Finding the Fourth Proportional to 13,550,430.12, 18,699,967.98 and 7,669,596.84
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Solution
The fourth proportional to 13,550,430.12, 18,699,967.98 and 7,669,596.84 is: 10,584,255.56
Step by Step Solution
- Step 1: Write the proportion equation
13,550,430.12 : 18,699,967.98 = 7,669,596.84 : x - Step 2: Convert to fraction form
13,550,430.12/18,699,967.98 = 7,669,596.84/x - Step 3: Cross multiply
13,550,430.12x = 18,699,967.98 × 7,669,596.84 - Step 4: Simplify right side
13,550,430.12x = 143,421,215,327,509.19 - Step 5: Solve for x
x = 143,421,215,327,509.19/13,550,430.12 - Step 6: Final answer
x = 10,584,255.56
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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.