Finding the Fourth Proportional to 3,890,622,155.68, 5,369,051,477.10 and 2,106,475,390
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Solution
The fourth proportional to 3,890,622,155.68, 5,369,051,477.10 and 2,106,475,390 is: 2,906,932,195.32
Step by Step Solution
- Step 1: Write the proportion equation
3,890,622,155.68 : 5,369,051,477.10 = 2,106,475,390 : x - Step 2: Convert to fraction form
3,890,622,155.68/5,369,051,477.10 = 2,106,475,390/x - Step 3: Cross multiply
3,890,622,155.68x = 5,369,051,477.10 × 2,106,475,390 - Step 4: Simplify right side
3,890,622,155.68x = 11,309,774,804,154,298,368 - Step 5: Solve for x
x = 11,309,774,804,154,298,368/3,890,622,155.68 - Step 6: Final answer
x = 2,906,932,195.32
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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.