Finding the Fourth Proportional to 1,629,611,669.36, 2,248,918,424.28 and 915,273,107.12
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Solution
The fourth proportional to 1,629,611,669.36, 2,248,918,424.28 and 915,273,107.12 is: 1,263,107,397.03
Step by Step Solution
- Step 1: Write the proportion equation
1,629,611,669.36 : 2,248,918,424.28 = 915,273,107.12 : x - Step 2: Convert to fraction form
1,629,611,669.36/2,248,918,424.28 = 915,273,107.12/x - Step 3: Cross multiply
1,629,611,669.36x = 2,248,918,424.28 × 915,273,107.12 - Step 4: Simplify right side
1,629,611,669.36x = 2,058,374,553,850,170,368 - Step 5: Solve for x
x = 2,058,374,553,850,170,368/1,629,611,669.36 - Step 6: Final answer
x = 1,263,107,397.03
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1.5x scale
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.