Finding the Fourth Proportional to 7,880,691.84, 10,871,219.44 and 6,412,240.08
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Solution
The fourth proportional to 7,880,691.84, 10,871,219.44 and 6,412,240.08 is: 8,845,526.56
Step by Step Solution
- Step 1: Write the proportion equation
7,880,691.84 : 10,871,219.44 = 6,412,240.08 : x - Step 2: Convert to fraction form
7,880,691.84/10,871,219.44 = 6,412,240.08/x - Step 3: Cross multiply
7,880,691.84x = 10,871,219.44 × 6,412,240.08 - Step 4: Simplify right side
7,880,691.84x = 69,708,869,014,164.91 - Step 5: Solve for x
x = 69,708,869,014,164.91/7,880,691.84 - Step 6: Final answer
x = 8,845,526.56
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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.