Finding the Fourth Proportional to 1,099,264,431.91, 1,516,977,840.47 and 629,456,554.66
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Solution
The fourth proportional to 1,099,264,431.91, 1,516,977,840.47 and 629,456,554.66 is: 868,645,993.85
Step by Step Solution
- Step 1: Write the proportion equation
1,099,264,431.91 : 1,516,977,840.47 = 629,456,554.66 : x - Step 2: Convert to fraction form
1,099,264,431.91/1,516,977,840.47 = 629,456,554.66/x - Step 3: Cross multiply
1,099,264,431.91x = 1,516,977,840.47 × 629,456,554.66 - Step 4: Simplify right side
1,099,264,431.91x = 954,871,644,957,298,176 - Step 5: Solve for x
x = 954,871,644,957,298,176/1,099,264,431.91 - Step 6: Final answer
x = 868,645,993.85
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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.