Finding the Fourth Proportional to 38,719,787.76, 53,436,430.40 and 22,201,449.20
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Solution
The fourth proportional to 38,719,787.76, 53,436,430.40 and 22,201,449.20 is: 30,639,790.75
Step by Step Solution
- Step 1: Write the proportion equation
38,719,787.76 : 53,436,430.40 = 22,201,449.20 : x - Step 2: Convert to fraction form
38,719,787.76/53,436,430.40 = 22,201,449.20/x - Step 3: Cross multiply
38,719,787.76x = 53,436,430.40 × 22,201,449.20 - Step 4: Simplify right side
38,719,787.76x = 1,186,366,194,954,935.50 - Step 5: Solve for x
x = 1,186,366,194,954,935.50/38,719,787.76 - Step 6: Final answer
x = 30,639,790.75
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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.