Finding the Fourth Proportional to 879,170,615.34, 1,213,257,836.46 and 482,719,283.52
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Solution
The fourth proportional to 879,170,615.34, 1,213,257,836.46 and 482,719,283.52 is: 666,153,922.03
Step by Step Solution
- Step 1: Write the proportion equation
879,170,615.34 : 1,213,257,836.46 = 482,719,283.52 : x - Step 2: Convert to fraction form
879,170,615.34/1,213,257,836.46 = 482,719,283.52/x - Step 3: Cross multiply
879,170,615.34x = 1,213,257,836.46 × 482,719,283.52 - Step 4: Simplify right side
879,170,615.34x = 585,662,953,540,996,480 - Step 5: Solve for x
x = 585,662,953,540,996,480/879,170,615.34 - Step 6: Final answer
x = 666,153,922.03
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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.