Finding the Fourth Proportional to 1,631,649,501.38, 2,447,471,197.03 and 511,258,930.49
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Solution
The fourth proportional to 1,631,649,501.38, 2,447,471,197.03 and 511,258,930.49 is: 766,887,438.47
Step by Step Solution
- Step 1: Write the proportion equation
1,631,649,501.38 : 2,447,471,197.03 = 511,258,930.49 : x - Step 2: Convert to fraction form
1,631,649,501.38/2,447,471,197.03 = 511,258,930.49/x - Step 3: Cross multiply
1,631,649,501.38x = 2,447,471,197.03 × 511,258,930.49 - Step 4: Simplify right side
1,631,649,501.38x = 1,251,291,506,590,576,384 - Step 5: Solve for x
x = 1,251,291,506,590,576,384/1,631,649,501.38 - Step 6: Final answer
x = 766,887,438.47
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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.