Finding the Fourth Proportional to 897,236,424.80, 1,257,944,980 and 897,236,424.80
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Solution
The fourth proportional to 897,236,424.80, 1,257,944,980 and 897,236,424.80 is: 1,257,944,980
Step by Step Solution
- Step 1: Write the proportion equation
897,236,424.80 : 1,257,944,980 = 897,236,424.80 : x - Step 2: Convert to fraction form
897,236,424.80/1,257,944,980 = 897,236,424.80/x - Step 3: Cross multiply
897,236,424.80x = 1,257,944,980 × 897,236,424.80 - Step 4: Simplify right side
897,236,424.80x = 1,128,674,056,450,307,456 - Step 5: Solve for x
x = 1,128,674,056,450,307,456/897,236,424.80 - Step 6: Final answer
x = 1,257,944,980
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.