Finding the Fourth Proportional to 4,220,988,859.28, 6,331,537,172.96 and 1,115,544,671.76
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Solution
The fourth proportional to 4,220,988,859.28, 6,331,537,172.96 and 1,115,544,671.76 is: 1,673,331,248.39
Step by Step Solution
- Step 1: Write the proportion equation
4,220,988,859.28 : 6,331,537,172.96 = 1,115,544,671.76 : x - Step 2: Convert to fraction form
4,220,988,859.28/6,331,537,172.96 = 1,115,544,671.76/x - Step 3: Cross multiply
4,220,988,859.28x = 6,331,537,172.96 × 1,115,544,671.76 - Step 4: Simplify right side
4,220,988,859.28x = 7,063,112,557,345,901,568 - Step 5: Solve for x
x = 7,063,112,557,345,901,568/4,220,988,859.28 - Step 6: Final answer
x = 1,673,331,248.39
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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.