Finding the Fourth Proportional to 1,543,608,383.40, 2,130,193,023.12 and 838,760,362.44
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Solution
The fourth proportional to 1,543,608,383.40, 2,130,193,023.12 and 838,760,362.44 is: 1,157,496,610.77
Step by Step Solution
- Step 1: Write the proportion equation
1,543,608,383.40 : 2,130,193,023.12 = 838,760,362.44 : x - Step 2: Convert to fraction form
1,543,608,383.40/2,130,193,023.12 = 838,760,362.44/x - Step 3: Cross multiply
1,543,608,383.40x = 2,130,193,023.12 × 838,760,362.44 - Step 4: Simplify right side
1,543,608,383.40x = 1,786,721,472,139,290,624 - Step 5: Solve for x
x = 1,786,721,472,139,290,624/1,543,608,383.40 - Step 6: Final answer
x = 1,157,496,610.77
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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.