Finding the Fourth Proportional to 788,928,175.17, 1,183,553,663.36 and 271,291,389.57
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Solution
The fourth proportional to 788,928,175.17, 1,183,553,663.36 and 271,291,389.57 is: 406,992,585.72
Step by Step Solution
- Step 1: Write the proportion equation
788,928,175.17 : 1,183,553,663.36 = 271,291,389.57 : x - Step 2: Convert to fraction form
788,928,175.17/1,183,553,663.36 = 271,291,389.57/x - Step 3: Cross multiply
788,928,175.17x = 1,183,553,663.36 × 271,291,389.57 - Step 4: Simplify right side
788,928,175.17x = 321,087,917,962,241,920 - Step 5: Solve for x
x = 321,087,917,962,241,920/788,928,175.17 - Step 6: Final answer
x = 406,992,585.72
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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.