Finding the Fourth Proportional to 1,625,378,375.43, 2,242,984,008.69 and 956,366,752.10
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Solution
The fourth proportional to 1,625,378,375.43, 2,242,984,008.69 and 956,366,752.10 is: 1,319,763,670.92
Step by Step Solution
- Step 1: Write the proportion equation
1,625,378,375.43 : 2,242,984,008.69 = 956,366,752.10 : x - Step 2: Convert to fraction form
1,625,378,375.43/2,242,984,008.69 = 956,366,752.10/x - Step 3: Cross multiply
1,625,378,375.43x = 2,242,984,008.69 × 956,366,752.10 - Step 4: Simplify right side
1,625,378,375.43x = 2,145,115,331,391,878,656 - Step 5: Solve for x
x = 2,145,115,331,391,878,656/1,625,378,375.43 - Step 6: Final answer
x = 1,319,763,670.92
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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.