Finding the Fourth Proportional to 7,217,634.07, 9,959,069.10 and 4,118,742.55
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Solution
The fourth proportional to 7,217,634.07, 9,959,069.10 and 4,118,742.55 is: 5,683,142.32
Step by Step Solution
- Step 1: Write the proportion equation
7,217,634.07 : 9,959,069.10 = 4,118,742.55 : x - Step 2: Convert to fraction form
7,217,634.07/9,959,069.10 = 4,118,742.55/x - Step 3: Cross multiply
7,217,634.07x = 9,959,069.10 × 4,118,742.55 - Step 4: Simplify right side
7,217,634.07x = 41,018,841,660,560.20 - Step 5: Solve for x
x = 41,018,841,660,560.20/7,217,634.07 - Step 6: Final answer
x = 5,683,142.32
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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.