Finding the Fourth Proportional to 13,184,851.44, 19,782,960.62 and 7,118,378.67
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Solution
The fourth proportional to 13,184,851.44, 19,782,960.62 and 7,118,378.67 is: 10,680,636.45
Step by Step Solution
- Step 1: Write the proportion equation
13,184,851.44 : 19,782,960.62 = 7,118,378.67 : x - Step 2: Convert to fraction form
13,184,851.44/19,782,960.62 = 7,118,378.67/x - Step 3: Cross multiply
13,184,851.44x = 19,782,960.62 × 7,118,378.67 - Step 4: Simplify right side
13,184,851.44x = 140,822,604,871,266.06 - Step 5: Solve for x
x = 140,822,604,871,266.06/13,184,851.44 - Step 6: Final answer
x = 10,680,636.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.