Finding the Fourth Proportional to 1,363,438,478.70, 2,045,157,718.05 and 946,221,864.30
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Solution
The fourth proportional to 1,363,438,478.70, 2,045,157,718.05 and 946,221,864.30 is: 1,419,332,796.45
Step by Step Solution
- Step 1: Write the proportion equation
1,363,438,478.70 : 2,045,157,718.05 = 946,221,864.30 : x - Step 2: Convert to fraction form
1,363,438,478.70/2,045,157,718.05 = 946,221,864.30/x - Step 3: Cross multiply
1,363,438,478.70x = 2,045,157,718.05 × 946,221,864.30 - Step 4: Simplify right side
1,363,438,478.70x = 1,935,172,948,760,804,608 - Step 5: Solve for x
x = 1,935,172,948,760,804,608/1,363,438,478.70 - Step 6: Final answer
x = 1,419,332,796.45
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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.