Finding the Fourth Proportional to 19,970,741.36, 29,976,787.56 and 12,299,911.76
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Solution
The fourth proportional to 19,970,741.36, 29,976,787.56 and 12,299,911.76 is: 18,462,601.62
Step by Step Solution
- Step 1: Write the proportion equation
19,970,741.36 : 29,976,787.56 = 12,299,911.76 : x - Step 2: Convert to fraction form
19,970,741.36/29,976,787.56 = 12,299,911.76/x - Step 3: Cross multiply
19,970,741.36x = 29,976,787.56 × 12,299,911.76 - Step 4: Simplify right side
19,970,741.36x = 368,711,841,836,265.69 - Step 5: Solve for x
x = 368,711,841,836,265.69/19,970,741.36 - Step 6: Final answer
x = 18,462,601.62
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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.