Finding the Fourth Proportional to 1,135,302,670.40, 1,702,954,005.60 and 890,414,657.60
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Solution
The fourth proportional to 1,135,302,670.40, 1,702,954,005.60 and 890,414,657.60 is: 1,335,621,986.40
Step by Step Solution
- Step 1: Write the proportion equation
1,135,302,670.40 : 1,702,954,005.60 = 890,414,657.60 : x - Step 2: Convert to fraction form
1,135,302,670.40/1,702,954,005.60 = 890,414,657.60/x - Step 3: Cross multiply
1,135,302,670.40x = 1,702,954,005.60 × 890,414,657.60 - Step 4: Simplify right side
1,135,302,670.40x = 1,516,335,207,804,872,448 - Step 5: Solve for x
x = 1,516,335,207,804,872,448/1,135,302,670.40 - Step 6: Final answer
x = 1,335,621,986.40
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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.