Finding the Fourth Proportional to 879,170,571.45, 1,213,257,775.93 and 482,719,239.63
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Solution
The fourth proportional to 879,170,571.45, 1,213,257,775.93 and 482,719,239.63 is: 666,153,861.48
Step by Step Solution
- Step 1: Write the proportion equation
879,170,571.45 : 1,213,257,775.93 = 482,719,239.63 : x - Step 2: Convert to fraction form
879,170,571.45/1,213,257,775.93 = 482,719,239.63/x - Step 3: Cross multiply
879,170,571.45x = 1,213,257,775.93 × 482,719,239.63 - Step 4: Simplify right side
879,170,571.45x = 585,662,871,070,907,776 - Step 5: Solve for x
x = 585,662,871,070,907,776/879,170,571.45 - Step 6: Final answer
x = 666,153,861.48
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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.