Finding the Fourth Proportional to 5,196,213,765.04, 7,170,868,009.74 and 2,817,431,885.92
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Solution
The fourth proportional to 5,196,213,765.04, 7,170,868,009.74 and 2,817,431,885.92 is: 3,888,106,435.55
Step by Step Solution
- Step 1: Write the proportion equation
5,196,213,765.04 : 7,170,868,009.74 = 2,817,431,885.92 : x - Step 2: Convert to fraction form
5,196,213,765.04/7,170,868,009.74 = 2,817,431,885.92/x - Step 3: Cross multiply
5,196,213,765.04x = 7,170,868,009.74 × 2,817,431,885.92 - Step 4: Simplify right side
5,196,213,765.04x = 20,203,432,180,365,164,544 - Step 5: Solve for x
x = 20,203,432,180,365,164,544/5,196,213,765.04 - Step 6: Final answer
x = 3,888,106,435.55
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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.