Finding the Fourth Proportional to 15,748,879.68, 23,621,453.28 and 5,111,311.68
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Solution
The fourth proportional to 15,748,879.68, 23,621,453.28 and 5,111,311.68 is: 7,666,361.83
Step by Step Solution
- Step 1: Write the proportion equation
15,748,879.68 : 23,621,453.28 = 5,111,311.68 : x - Step 2: Convert to fraction form
15,748,879.68/23,621,453.28 = 5,111,311.68/x - Step 3: Cross multiply
15,748,879.68x = 23,621,453.28 × 5,111,311.68 - Step 4: Simplify right side
15,748,879.68x = 120,736,610,048,638.31 - Step 5: Solve for x
x = 120,736,610,048,638.31/15,748,879.68 - Step 6: Final answer
x = 7,666,361.83
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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.