Finding the Fourth Proportional to 557,402,967.71, 769,265,108.44 and 306,551,569.06
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Solution
The fourth proportional to 557,402,967.71, 769,265,108.44 and 306,551,569.06 is: 423,068,120.69
Step by Step Solution
- Step 1: Write the proportion equation
557,402,967.71 : 769,265,108.44 = 306,551,569.06 : x - Step 2: Convert to fraction form
557,402,967.71/769,265,108.44 = 306,551,569.06/x - Step 3: Cross multiply
557,402,967.71x = 769,265,108.44 × 306,551,569.06 - Step 4: Simplify right side
557,402,967.71x = 235,819,426,012,703,520 - Step 5: Solve for x
x = 235,819,426,012,703,520/557,402,967.71 - Step 6: Final answer
x = 423,068,120.69
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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.