Finding the Fourth Proportional to 11,972,829.60, 17,961,868.80 and 3,884,428.80
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Solution
The fourth proportional to 11,972,829.60, 17,961,868.80 and 3,884,428.80 is: 5,827,494.65
Step by Step Solution
- Step 1: Write the proportion equation
11,972,829.60 : 17,961,868.80 = 3,884,428.80 : x - Step 2: Convert to fraction form
11,972,829.60/17,961,868.80 = 3,884,428.80/x - Step 3: Cross multiply
11,972,829.60x = 17,961,868.80 × 3,884,428.80 - Step 4: Simplify right side
11,972,829.60x = 69,771,600,468,541.44 - Step 5: Solve for x
x = 69,771,600,468,541.44/11,972,829.60 - Step 6: Final answer
x = 5,827,494.65
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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.