Finding the Fourth Proportional to 112,972,112.08, 155,889,039.36 and 63,401,115.76
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Solution
The fourth proportional to 112,972,112.08, 155,889,039.36 and 63,401,115.76 is: 87,486,538.48
Step by Step Solution
- Step 1: Write the proportion equation
112,972,112.08 : 155,889,039.36 = 63,401,115.76 : x - Step 2: Convert to fraction form
112,972,112.08/155,889,039.36 = 63,401,115.76/x - Step 3: Cross multiply
112,972,112.08x = 155,889,039.36 × 63,401,115.76 - Step 4: Simplify right side
112,972,112.08x = 9,883,539,030,178,556 - Step 5: Solve for x
x = 9,883,539,030,178,556/112,972,112.08 - Step 6: Final answer
x = 87,486,538.48
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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.