Finding the Fourth Proportional to 8,139,204,427.20, 12,208,806,640.80 and 2,011,965,259.20
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Solution
The fourth proportional to 8,139,204,427.20, 12,208,806,640.80 and 2,011,965,259.20 is: 3,017,947,888.80
Step by Step Solution
- Step 1: Write the proportion equation
8,139,204,427.20 : 12,208,806,640.80 = 2,011,965,259.20 : x - Step 2: Convert to fraction form
8,139,204,427.20/12,208,806,640.80 = 2,011,965,259.20/x - Step 3: Cross multiply
8,139,204,427.20x = 12,208,806,640.80 × 2,011,965,259.20 - Step 4: Simplify right side
8,139,204,427.20x = 24,563,694,817,579,851,776 - Step 5: Solve for x
x = 24,563,694,817,579,851,776/8,139,204,427.20 - Step 6: Final answer
x = 3,017,947,888.80
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Double scale
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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.