Finding the Fourth Proportional to 8,398,112,826.80, 12,597,169,240.20 and 6,221,330,490.80
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Solution
The fourth proportional to 8,398,112,826.80, 12,597,169,240.20 and 6,221,330,490.80 is: 9,331,995,736.20
Step by Step Solution
- Step 1: Write the proportion equation
8,398,112,826.80 : 12,597,169,240.20 = 6,221,330,490.80 : x - Step 2: Convert to fraction form
8,398,112,826.80/12,597,169,240.20 = 6,221,330,490.80/x - Step 3: Cross multiply
8,398,112,826.80x = 12,597,169,240.20 × 6,221,330,490.80 - Step 4: Simplify right side
8,398,112,826.80x = 78,371,153,091,824,140,288 - Step 5: Solve for x
x = 78,371,153,091,824,140,288/8,398,112,826.80 - Step 6: Final answer
x = 9,331,995,736.20
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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.