Finding the Fourth Proportional to 7,658,905.60, 11,476,548.60 and 6,643,262.80
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Solution
The fourth proportional to 7,658,905.60, 11,476,548.60 and 6,643,262.80 is: 9,954,650.49
Step by Step Solution
- Step 1: Write the proportion equation
7,658,905.60 : 11,476,548.60 = 6,643,262.80 : x - Step 2: Convert to fraction form
7,658,905.60/11,476,548.60 = 6,643,262.80/x - Step 3: Cross multiply
7,658,905.60x = 11,476,548.60 × 6,643,262.80 - Step 4: Simplify right side
7,658,905.60x = 76,241,728,386,772.08 - Step 5: Solve for x
x = 76,241,728,386,772.08/7,658,905.60 - Step 6: Final answer
x = 9,954,650.49
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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.