Finding the Fourth Proportional to 1,158,993,309.48, 1,599,826,794.34 and 689,093,509.44
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Solution
The fourth proportional to 1,158,993,309.48, 1,599,826,794.34 and 689,093,509.44 is: 951,196,397.07
Step by Step Solution
- Step 1: Write the proportion equation
1,158,993,309.48 : 1,599,826,794.34 = 689,093,509.44 : x - Step 2: Convert to fraction form
1,158,993,309.48/1,599,826,794.34 = 689,093,509.44/x - Step 3: Cross multiply
1,158,993,309.48x = 1,599,826,794.34 × 689,093,509.44 - Step 4: Simplify right side
1,158,993,309.48x = 1,102,430,260,207,895,808 - Step 5: Solve for x
x = 1,102,430,260,207,895,808/1,158,993,309.48 - Step 6: Final answer
x = 951,196,397.07
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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.