Finding the Fourth Proportional to 55,004,749.20, 82,507,139.08 and 20,456,636.99
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Solution
The fourth proportional to 55,004,749.20, 82,507,139.08 and 20,456,636.99 is: 30,684,961.16
Step by Step Solution
- Step 1: Write the proportion equation
55,004,749.20 : 82,507,139.08 = 20,456,636.99 : x - Step 2: Convert to fraction form
55,004,749.20/82,507,139.08 = 20,456,636.99/x - Step 3: Cross multiply
55,004,749.20x = 82,507,139.08 × 20,456,636.99 - Step 4: Simplify right side
55,004,749.20x = 1,687,818,592,779,325.25 - Step 5: Solve for x
x = 1,687,818,592,779,325.25/55,004,749.20 - Step 6: Final answer
x = 30,684,961.16
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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.