Finding the Fourth Proportional to 69,871,768.92, 96,423,423.56 and 40,520,503.84
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Solution
The fourth proportional to 69,871,768.92, 96,423,423.56 and 40,520,503.84 is: 55,918,517.09
Step by Step Solution
- Step 1: Write the proportion equation
69,871,768.92 : 96,423,423.56 = 40,520,503.84 : x - Step 2: Convert to fraction form
69,871,768.92/96,423,423.56 = 40,520,503.84/x - Step 3: Cross multiply
69,871,768.92x = 96,423,423.56 × 40,520,503.84 - Step 4: Simplify right side
69,871,768.92x = 3,907,125,704,628,927 - Step 5: Solve for x
x = 3,907,125,704,628,927/69,871,768.92 - Step 6: Final answer
x = 55,918,517.09
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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.