Finding the Fourth Proportional to 12,991,430.08, 19,448,319.60 and 7,858,325.44
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Solution
The fourth proportional to 12,991,430.08, 19,448,319.60 and 7,858,325.44 is: 11,764,003.17
Step by Step Solution
- Step 1: Write the proportion equation
12,991,430.08 : 19,448,319.60 = 7,858,325.44 : x - Step 2: Convert to fraction form
12,991,430.08/19,448,319.60 = 7,858,325.44/x - Step 3: Cross multiply
12,991,430.08x = 19,448,319.60 × 7,858,325.44 - Step 4: Simplify right side
12,991,430.08x = 152,831,224,677,930.66 - Step 5: Solve for x
x = 152,831,224,677,930.66/12,991,430.08 - Step 6: Final answer
x = 11,764,003.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.