Finding the Fourth Proportional to 160,357,991.99, 221,294,034.20 and 87,019,133.99
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Solution
The fourth proportional to 160,357,991.99, 221,294,034.20 and 87,019,133.99 is: 120,086,407.75
Step by Step Solution
- Step 1: Write the proportion equation
160,357,991.99 : 221,294,034.20 = 87,019,133.99 : x - Step 2: Convert to fraction form
160,357,991.99/221,294,034.20 = 87,019,133.99/x - Step 3: Cross multiply
160,357,991.99x = 221,294,034.20 × 87,019,133.99 - Step 4: Simplify right side
160,357,991.99x = 19,256,815,212,802,344 - Step 5: Solve for x
x = 19,256,815,212,802,344/160,357,991.99 - Step 6: Final answer
x = 120,086,407.75
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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.