Finding the Fourth Proportional to 1,158,993,302.99, 1,599,826,785.38 and 689,093,502.93
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Solution
The fourth proportional to 1,158,993,302.99, 1,599,826,785.38 and 689,093,502.93 is: 951,196,388.09
Step by Step Solution
- Step 1: Write the proportion equation
1,158,993,302.99 : 1,599,826,785.38 = 689,093,502.93 : x - Step 2: Convert to fraction form
1,158,993,302.99/1,599,826,785.38 = 689,093,502.93/x - Step 3: Cross multiply
1,158,993,302.99x = 1,599,826,785.38 × 689,093,502.93 - Step 4: Simplify right side
1,158,993,302.99x = 1,102,430,243,615,299,968 - Step 5: Solve for x
x = 1,102,430,243,615,299,968/1,158,993,302.99 - Step 6: Final answer
x = 951,196,388.09
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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.