Finding the Fourth Proportional to 557,402,966.96, 769,265,107.40 and 306,551,568.31
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Solution
The fourth proportional to 557,402,966.96, 769,265,107.40 and 306,551,568.31 is: 423,068,119.65
Step by Step Solution
- Step 1: Write the proportion equation
557,402,966.96 : 769,265,107.40 = 306,551,568.31 : x - Step 2: Convert to fraction form
557,402,966.96/769,265,107.40 = 306,551,568.31/x - Step 3: Cross multiply
557,402,966.96x = 769,265,107.40 × 306,551,568.31 - Step 4: Simplify right side
557,402,966.96x = 235,819,425,118,473,824 - Step 5: Solve for x
x = 235,819,425,118,473,824/557,402,966.96 - Step 6: Final answer
x = 423,068,119.65
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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.