Finding the Fourth Proportional to 7,128,875.36, 10,693,941.42 and 2,011,350.08
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Solution
The fourth proportional to 7,128,875.36, 10,693,941.42 and 2,011,350.08 is: 3,017,202.41
Step by Step Solution
- Step 1: Write the proportion equation
7,128,875.36 : 10,693,941.42 = 2,011,350.08 : x - Step 2: Convert to fraction form
7,128,875.36/10,693,941.42 = 2,011,350.08/x - Step 3: Cross multiply
7,128,875.36x = 10,693,941.42 × 2,011,350.08 - Step 4: Simplify right side
7,128,875.36x = 21,509,259,930,632.31 - Step 5: Solve for x
x = 21,509,259,930,632.31/7,128,875.36 - Step 6: Final answer
x = 3,017,202.41
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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.