Finding the Fourth Proportional to 71,388,495.84, 98,546,258.86 and 48,215,011.06
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Solution
The fourth proportional to 71,388,495.84, 98,546,258.86 and 48,215,011.06 is: 66,557,067.84
Step by Step Solution
- Step 1: Write the proportion equation
71,388,495.84 : 98,546,258.86 = 48,215,011.06 : x - Step 2: Convert to fraction form
71,388,495.84/98,546,258.86 = 48,215,011.06/x - Step 3: Cross multiply
71,388,495.84x = 98,546,258.86 × 48,215,011.06 - Step 4: Simplify right side
71,388,495.84x = 4,751,408,960,856,523 - Step 5: Solve for x
x = 4,751,408,960,856,523/71,388,495.84 - Step 6: Final answer
x = 66,557,067.84
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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.