Finding the Fourth Proportional to 920,753,179.34, 1,382,112,953.09 and 396,381,822.08
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Solution
The fourth proportional to 920,753,179.34, 1,382,112,953.09 and 396,381,822.08 is: 594,995,991.28
Step by Step Solution
- Step 1: Write the proportion equation
920,753,179.34 : 1,382,112,953.09 = 396,381,822.08 : x - Step 2: Convert to fraction form
920,753,179.34/1,382,112,953.09 = 396,381,822.08/x - Step 3: Cross multiply
920,753,179.34x = 1,382,112,953.09 × 396,381,822.08 - Step 4: Simplify right side
920,753,179.34x = 547,844,450,670,629,952 - Step 5: Solve for x
x = 547,844,450,670,629,952/920,753,179.34 - Step 6: Final answer
x = 594,995,991.28
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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.