Finding the Fourth Proportional to 73,252,829,857.80, 109,879,244,786.70 and 18,107,677,345.80
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Solution
The fourth proportional to 73,252,829,857.80, 109,879,244,786.70 and 18,107,677,345.80 is: 27,161,516,018.70
Step by Step Solution
- Step 1: Write the proportion equation
73,252,829,857.80 : 109,879,244,786.70 = 18,107,677,345.80 : x - Step 2: Convert to fraction form
73,252,829,857.80/109,879,244,786.70 = 18,107,677,345.80/x - Step 3: Cross multiply
73,252,829,857.80x = 109,879,244,786.70 × 18,107,677,345.80 - Step 4: Simplify right side
73,252,829,857.80x = 1,989,657,911,597,740,326,912 - Step 5: Solve for x
x = 1,989,657,911,597,740,326,912/73,252,829,857.80 - Step 6: Final answer
x = 27,161,516,018.70
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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.