Finding the Fourth Proportional to 1,638,752,353.90, 2,458,128,530.85 and 1,611,542,574.70
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Solution
The fourth proportional to 1,638,752,353.90, 2,458,128,530.85 and 1,611,542,574.70 is: 2,417,313,862.05
Step by Step Solution
- Step 1: Write the proportion equation
1,638,752,353.90 : 2,458,128,530.85 = 1,611,542,574.70 : x - Step 2: Convert to fraction form
1,638,752,353.90/2,458,128,530.85 = 1,611,542,574.70/x - Step 3: Cross multiply
1,638,752,353.90x = 2,458,128,530.85 × 1,611,542,574.70 - Step 4: Simplify right side
1,638,752,353.90x = 3,961,378,781,549,537,280 - Step 5: Solve for x
x = 3,961,378,781,549,537,280/1,638,752,353.90 - Step 6: Final answer
x = 2,417,313,862.05
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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.