Finding the Fourth Proportional to 5,190,739.84, 7,162,181.64 and 2,898,547.84
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Solution
The fourth proportional to 5,190,739.84, 7,162,181.64 and 2,898,547.84 is: 3,999,415.64
Step by Step Solution
- Step 1: Write the proportion equation
5,190,739.84 : 7,162,181.64 = 2,898,547.84 : x - Step 2: Convert to fraction form
5,190,739.84/7,162,181.64 = 2,898,547.84/x - Step 3: Cross multiply
5,190,739.84x = 7,162,181.64 × 2,898,547.84 - Step 4: Simplify right side
5,190,739.84x = 20,759,926,122,309.66 - Step 5: Solve for x
x = 20,759,926,122,309.66/5,190,739.84 - Step 6: Final answer
x = 3,999,415.64
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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.