Finding the Fourth Proportional to 7,880,693.84, 10,871,222.20 and 6,412,242.08
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Solution
The fourth proportional to 7,880,693.84, 10,871,222.20 and 6,412,242.08 is: 8,845,529.32
Step by Step Solution
- Step 1: Write the proportion equation
7,880,693.84 : 10,871,222.20 = 6,412,242.08 : x - Step 2: Convert to fraction form
7,880,693.84/10,871,222.20 = 6,412,242.08/x - Step 3: Cross multiply
7,880,693.84x = 10,871,222.20 × 6,412,242.08 - Step 4: Simplify right side
7,880,693.84x = 69,708,908,451,870.17 - Step 5: Solve for x
x = 69,708,908,451,870.17/7,880,693.84 - Step 6: Final answer
x = 8,845,529.32
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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.