Finding the Fourth Proportional to 12,649,163.71, 18,943,156.73 and 7,241,412.55
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Solution
The fourth proportional to 12,649,163.71, 18,943,156.73 and 7,241,412.55 is: 10,844,607.28
Step by Step Solution
- Step 1: Write the proportion equation
12,649,163.71 : 18,943,156.73 = 7,241,412.55 : x - Step 2: Convert to fraction form
12,649,163.71/18,943,156.73 = 7,241,412.55/x - Step 3: Cross multiply
12,649,163.71x = 18,943,156.73 × 7,241,412.55 - Step 4: Simplify right side
12,649,163.71x = 137,175,212,845,031.91 - Step 5: Solve for x
x = 137,175,212,845,031.91/12,649,163.71 - Step 6: Final answer
x = 10,844,607.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.