Finding the Fourth Proportional to 1,582,517,620.13, 2,374,138,006.91 and 547,377,627.65
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Solution
The fourth proportional to 1,582,517,620.13, 2,374,138,006.91 and 547,377,627.65 is: 821,191,507.38
Step by Step Solution
- Step 1: Write the proportion equation
1,582,517,620.13 : 2,374,138,006.91 = 547,377,627.65 : x - Step 2: Convert to fraction form
1,582,517,620.13/2,374,138,006.91 = 547,377,627.65/x - Step 3: Cross multiply
1,582,517,620.13x = 2,374,138,006.91 × 547,377,627.65 - Step 4: Simplify right side
1,582,517,620.13x = 1,299,550,029,933,358,336 - Step 5: Solve for x
x = 1,299,550,029,933,358,336/1,582,517,620.13 - Step 6: Final answer
x = 821,191,507.38
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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.