Finding the Fourth Proportional to 7,730,107.20, 10,666,438.56 and 4,292,389.44
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Solution
The fourth proportional to 7,730,107.20, 10,666,438.56 and 4,292,389.44 is: 5,922,881.41
Step by Step Solution
- Step 1: Write the proportion equation
7,730,107.20 : 10,666,438.56 = 4,292,389.44 : x - Step 2: Convert to fraction form
7,730,107.20/10,666,438.56 = 4,292,389.44/x - Step 3: Cross multiply
7,730,107.20x = 10,666,438.56 × 4,292,389.44 - Step 4: Simplify right side
7,730,107.20x = 45,784,508,237,352.81 - Step 5: Solve for x
x = 45,784,508,237,352.81/7,730,107.20 - Step 6: Final answer
x = 5,922,881.41
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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.