Finding the Fourth Proportional to 8,139,203,039.20, 12,208,804,558.80 and 2,011,963,871.20
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Solution
The fourth proportional to 8,139,203,039.20, 12,208,804,558.80 and 2,011,963,871.20 is: 3,017,945,806.80
Step by Step Solution
- Step 1: Write the proportion equation
8,139,203,039.20 : 12,208,804,558.80 = 2,011,963,871.20 : x - Step 2: Convert to fraction form
8,139,203,039.20/12,208,804,558.80 = 2,011,963,871.20/x - Step 3: Cross multiply
8,139,203,039.20x = 12,208,804,558.80 × 2,011,963,871.20 - Step 4: Simplify right side
8,139,203,039.20x = 24,563,673,682,847,453,184 - Step 5: Solve for x
x = 24,563,673,682,847,453,184/8,139,203,039.20 - Step 6: Final answer
x = 3,017,945,806.80
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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.