Finding the Fourth Proportional to 2,165,391,301.28, 2,988,159,979.56 and 1,175,295,460.64
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Solution
The fourth proportional to 2,165,391,301.28, 2,988,159,979.56 and 1,175,295,460.64 is: 1,621,864,305.80
Step by Step Solution
- Step 1: Write the proportion equation
2,165,391,301.28 : 2,988,159,979.56 = 1,175,295,460.64 : x - Step 2: Convert to fraction form
2,165,391,301.28/2,988,159,979.56 = 1,175,295,460.64/x - Step 3: Cross multiply
2,165,391,301.28x = 2,988,159,979.56 × 1,175,295,460.64 - Step 4: Simplify right side
2,165,391,301.28x = 3,511,970,859,642,983,424 - Step 5: Solve for x
x = 3,511,970,859,642,983,424/2,165,391,301.28 - Step 6: Final answer
x = 1,621,864,305.80
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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.