Finding the Fourth Proportional to 5,122,965.94, 7,069,009.86 and 3,289,907.18
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Solution
The fourth proportional to 5,122,965.94, 7,069,009.86 and 3,289,907.18 is: 4,539,633.21
Step by Step Solution
- Step 1: Write the proportion equation
5,122,965.94 : 7,069,009.86 = 3,289,907.18 : x - Step 2: Convert to fraction form
5,122,965.94/7,069,009.86 = 3,289,907.18/x - Step 3: Cross multiply
5,122,965.94x = 7,069,009.86 × 3,289,907.18 - Step 4: Simplify right side
5,122,965.94x = 23,256,386,293,904.80 - Step 5: Solve for x
x = 23,256,386,293,904.80/5,122,965.94 - Step 6: Final answer
x = 4,539,633.21
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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.