Finding the Fourth Proportional to 6,428,430.11, 8,871,632.17 and 4,249,193.96
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Solution
The fourth proportional to 6,428,430.11, 8,871,632.17 and 4,249,193.96 is: 5,864,151.15
Step by Step Solution
- Step 1: Write the proportion equation
6,428,430.11 : 8,871,632.17 = 4,249,193.96 : x - Step 2: Convert to fraction form
6,428,430.11/8,871,632.17 = 4,249,193.96/x - Step 3: Cross multiply
6,428,430.11x = 8,871,632.17 × 4,249,193.96 - Step 4: Simplify right side
6,428,430.11x = 37,697,285,843,661.80 - Step 5: Solve for x
x = 37,697,285,843,661.80/6,428,430.11 - Step 6: Final answer
x = 5,864,151.15
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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.