Finding the Fourth Proportional to 12,312,112.84, 18,467,293.38 and 3,791,560.84
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Solution
The fourth proportional to 12,312,112.84, 18,467,293.38 and 3,791,560.84 is: 5,687,071.53
Step by Step Solution
- Step 1: Write the proportion equation
12,312,112.84 : 18,467,293.38 = 3,791,560.84 : x - Step 2: Convert to fraction form
12,312,112.84/18,467,293.38 = 3,791,560.84/x - Step 3: Cross multiply
12,312,112.84x = 18,467,293.38 × 3,791,560.84 - Step 4: Simplify right side
12,312,112.84x = 70,019,866,400,399.23 - Step 5: Solve for x
x = 70,019,866,400,399.23/12,312,112.84 - Step 6: Final answer
x = 5,687,071.53
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1.5x scale
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.