Finding the Fourth Proportional to 115,756,303.86, 159,737,832.72 and 68,715,388.08
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Solution
The fourth proportional to 115,756,303.86, 159,737,832.72 and 68,715,388.08 is: 94,823,753.01
Step by Step Solution
- Step 1: Write the proportion equation
115,756,303.86 : 159,737,832.72 = 68,715,388.08 : x - Step 2: Convert to fraction form
115,756,303.86/159,737,832.72 = 68,715,388.08/x - Step 3: Cross multiply
115,756,303.86x = 159,737,832.72 × 68,715,388.08 - Step 4: Simplify right side
115,756,303.86x = 10,976,447,166,412,922 - Step 5: Solve for x
x = 10,976,447,166,412,922/115,756,303.86 - Step 6: Final answer
x = 94,823,753.01
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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.