Finding the Fourth Proportional to 4,753,135,947.81, 6,558,998,451.03 and 2,638,425,330.12
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Solution
The fourth proportional to 4,753,135,947.81, 6,558,998,451.03 and 2,638,425,330.12 is: 3,640,844,243.34
Step by Step Solution
- Step 1: Write the proportion equation
4,753,135,947.81 : 6,558,998,451.03 = 2,638,425,330.12 : x - Step 2: Convert to fraction form
4,753,135,947.81/6,558,998,451.03 = 2,638,425,330.12/x - Step 3: Cross multiply
4,753,135,947.81x = 6,558,998,451.03 × 2,638,425,330.12 - Step 4: Simplify right side
4,753,135,947.81x = 17,305,427,653,415,395,328 - Step 5: Solve for x
x = 17,305,427,653,415,395,328/4,753,135,947.81 - Step 6: Final answer
x = 3,640,844,243.34
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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.