Finding the Fourth Proportional to 115,775,556.80, 159,770,582.76 and 63,567,974
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Solution
The fourth proportional to 115,775,556.80, 159,770,582.76 and 63,567,974 is: 87,723,976.73
Step by Step Solution
- Step 1: Write the proportion equation
115,775,556.80 : 159,770,582.76 = 63,567,974 : x - Step 2: Convert to fraction form
115,775,556.80/159,770,582.76 = 63,567,974/x - Step 3: Cross multiply
115,775,556.80x = 159,770,582.76 × 63,567,974 - Step 4: Simplify right side
115,775,556.80x = 10,156,292,250,852,528 - Step 5: Solve for x
x = 10,156,292,250,852,528/115,775,556.80 - Step 6: Final answer
x = 87,723,976.73
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1.5x scale
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.