Finding the Fourth Proportional to 7,958,768.74, 10,975,298.40 and 5,053,115.06
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Solution
The fourth proportional to 7,958,768.74, 10,975,298.40 and 5,053,115.06 is: 6,968,344.91
Step by Step Solution
- Step 1: Write the proportion equation
7,958,768.74 : 10,975,298.40 = 5,053,115.06 : x - Step 2: Convert to fraction form
7,958,768.74/10,975,298.40 = 5,053,115.06/x - Step 3: Cross multiply
7,958,768.74x = 10,975,298.40 × 5,053,115.06 - Step 4: Simplify right side
7,958,768.74x = 55,459,445,633,033.90 - Step 5: Solve for x
x = 55,459,445,633,033.90/7,958,768.74 - Step 6: Final answer
x = 6,968,344.91
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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.