Finding the Fourth Proportional to 20,836,430.55, 31,255,826.81 and 6,461,541.99
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Solution
The fourth proportional to 20,836,430.55, 31,255,826.81 and 6,461,541.99 is: 9,692,679.22
Step by Step Solution
- Step 1: Write the proportion equation
20,836,430.55 : 31,255,826.81 = 6,461,541.99 : x - Step 2: Convert to fraction form
20,836,430.55/31,255,826.81 = 6,461,541.99/x - Step 3: Cross multiply
20,836,430.55x = 31,255,826.81 × 6,461,541.99 - Step 4: Simplify right side
20,836,430.55x = 201,960,837,332,675.06 - Step 5: Solve for x
x = 201,960,837,332,675.06/20,836,430.55 - Step 6: Final answer
x = 9,692,679.22
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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.