Finding the Fourth Proportional to 1,119,745,186.40, 1,679,617,779.60 and 1,068,726,850.40
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Solution
The fourth proportional to 1,119,745,186.40, 1,679,617,779.60 and 1,068,726,850.40 is: 1,603,090,275.60
Step by Step Solution
- Step 1: Write the proportion equation
1,119,745,186.40 : 1,679,617,779.60 = 1,068,726,850.40 : x - Step 2: Convert to fraction form
1,119,745,186.40/1,679,617,779.60 = 1,068,726,850.40/x - Step 3: Cross multiply
1,119,745,186.40x = 1,679,617,779.60 × 1,068,726,850.40 - Step 4: Simplify right side
1,119,745,186.40x = 1,795,052,619,467,749,120 - Step 5: Solve for x
x = 1,795,052,619,467,749,120/1,119,745,186.40 - Step 6: Final answer
x = 1,603,090,275.60
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1.5x scale
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.