Finding the Fourth Proportional to 871,444,177.74, 1,202,635,509.33 and 490,086,212.65
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Solution
The fourth proportional to 871,444,177.74, 1,202,635,509.33 and 490,086,212.65 is: 676,342,899.55
Step by Step Solution
- Step 1: Write the proportion equation
871,444,177.74 : 1,202,635,509.33 = 490,086,212.65 : x - Step 2: Convert to fraction form
871,444,177.74/1,202,635,509.33 = 490,086,212.65/x - Step 3: Cross multiply
871,444,177.74x = 1,202,635,509.33 × 490,086,212.65 - Step 4: Simplify right side
871,444,177.74x = 589,395,081,965,943,424 - Step 5: Solve for x
x = 589,395,081,965,943,424/871,444,177.74 - Step 6: Final answer
x = 676,342,899.55
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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.