Finding the Fourth Proportional to 5,128,012.99, 7,069,732.64 and 3,289,279.07
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Solution
The fourth proportional to 5,128,012.99, 7,069,732.64 and 3,289,279.07 is: 4,534,763.01
Step by Step Solution
- Step 1: Write the proportion equation
5,128,012.99 : 7,069,732.64 = 3,289,279.07 : x - Step 2: Convert to fraction form
5,128,012.99/7,069,732.64 = 3,289,279.07/x - Step 3: Cross multiply
5,128,012.99x = 7,069,732.64 × 3,289,279.07 - Step 4: Simplify right side
5,128,012.99x = 23,254,323,603,247.84 - Step 5: Solve for x
x = 23,254,323,603,247.84/5,128,012.99 - Step 6: Final answer
x = 4,534,763.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.