Finding the Fourth Proportional to 9,471,555,716.69, 13,069,852,787.78 and 5,660,319,901.17
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Solution
The fourth proportional to 9,471,555,716.69, 13,069,852,787.78 and 5,660,319,901.17 is: 7,810,707,137.55
Step by Step Solution
- Step 1: Write the proportion equation
9,471,555,716.69 : 13,069,852,787.78 = 5,660,319,901.17 : x - Step 2: Convert to fraction form
9,471,555,716.69/13,069,852,787.78 = 5,660,319,901.17/x - Step 3: Cross multiply
9,471,555,716.69x = 13,069,852,787.78 × 5,660,319,901.17 - Step 4: Simplify right side
9,471,555,716.69x = 73,979,547,840,025,067,520 - Step 5: Solve for x
x = 73,979,547,840,025,067,520/9,471,555,716.69 - Step 6: Final answer
x = 7,810,707,137.55
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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.